united states environmental protection agency …may 15, 2013 · the agency is in receipt of your...

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCYWASHINGTON, D.C. 20460

OFFICE OF CHEMICAL SAFETYAND POLLUTION PREVENTION

Brian L. Bret, Ph.D " ^ »y 1 5Dow AgroSciences LLC9330 Zionsville RoadIndianapolis, IN 46268

Subject: Notification per PR Notice 98-10 -Multiple Label ChangesKERB 3.3 SCEPA Reg. No. 62719-578Application Dated - April 18, 2013

Dear Dr. Bret:

The Agency is in receipt of your Application for Pesticide Notification under PesticideRegistration Notice (PRN) 98-10 for the subject product.

The Registration Division (RD) has conducted a review of this request for its applicabilityunder PRN 98-10 and finds that the action requested falls within the scope of PRN 98-10. Thelabel submitted with the application has been date-stamped "Notification" and will be placed inour records.

If you have any questions regarding this letter, please contact me at (703) 347-0257 [email protected].

Sincerely,

Maggie RudickHerbicide BranchRegistration Division (7505P)

Please read instruction* on ntvefte baton compfetit.. jrm. Form Approved. (; > No. 2070-O060. Approver! excii res 2-28-95

vvEPAUnited States

Environmental Protection AgencyWashington, DC 20460

Registration

Amendment

Other

OPP Identifier Number

Application for Pesticide - Section I

1. Company/Product Number

Dow AgroSciences/62719-578

4. Company/Product (Name)Dow AgroSciences/Kerb® 3.3 SC

2. EPA Product Manager

Kable Davis

PM#25

3. Proposed Classification

None Restricted

5. Name and Address of Applicant (Include ZIP Code)

Dow AgroSciences LLC9330 Zionsville RoadIndianapolis, IN 46268

Check if this is a new address

6. Expedited Reveiw. In accordance with FIFRA Section 3(c)(3)(b)(i), my product is similar or identical in composition and labelingto:EPA Reg. No.

Product Name

Section - II

Amendment - Explain below.

Resubmission in response to Agency letter dated.

Notification - Explain below.

Final printed labels in repsonsAgency letter dated"Me Too" Application.

Other - Explain below. MAY I 5 2013

Explanation: Use additional page(s) if necessary. (For section I and Section II.)

This notification is consistent with the provisions of PR Notice 98-10 and EPA regulations at 40 CFR 152.46, and no other changes have been made to thelabeling or the confidential statement of formula of this product. I understand that it is a violation of 18 U.S.C. Sec. 1001 to willfully make any false statement toEPA. I further understand that if this notification is not consistent with the terms of PR Notice 98-10 and 40 CFR 152.46, this product may be in violation ofFIFRA and I may be subject to enforcement action and penalties under sections 12 and 14 of FIFRA.

Section - III

1. Material This Product Will Be Packaged In:

Child-Resistant Packaging

[ Yes

No

* Certification mustbe submitted

If "Yes"Unit Packaging wgt.

No. percontainer

Water Soluble Packaging

Yes

No

If "Yes-Package wgt

No. percontainer

2. Type of Container

MetalPlasticGlassPaperOther (Specify)

3. Location of Net Contents Informationr i . r |] Label | | Container

4. Size(s) Retail Container 5. Location of Label Directions

6. Manner in Which Label is Affixed to Product LithographPaper 'StenciPaper glued- lied

| | Other

Section - IV

1. Contact Point (Complete items directly below for identification of individual to be contacted, if necessary, to pfccexi'tfus application.)

NameBrian L. Bret, Ph.D.

TitleRegulatory Manager

ft u v "

j Telephone No. (irjcJude Area Code)

' \916)t'780-747Z c

Certification u c«. ' <I certify that the statements I have made on this form and all attachments thereto are true, accurate and complete.I acknowledge that any knowlinglly false or misleading statement may be punishable by fine or imprisonment orboth under applicable law.

2. Signature

4. Typed Name

Brian L. Bret, Ph.D. ©Trademark of The Dow ChemicalCompany ("Dow") or an affiliated company of Dow

3. Title

Regulatory Manager

5. Date

ApriM8, 2013

c *J t,6. Date Application

Received

1' (Stamped)

EPA Form 8570-1 (Rev. 3-94) Previous editions are obsolete. White - EPA File Copy (original) Yellow - Applicant Copy

cDow AgroSciences

308/2EApril 18,2013

Dow AgroSciences LLC9330 Zionsville Road Indianapolis, IN 46268

www.dowagro.com

Document Processing Desk (NOTIF)Office of Pesticide Programs (7504P)U. S. Environmental Protection AgencyOne Potomac Yard2777 S. Crystal DriveArlington, VA 22202

KERB 3.3 SC (A.I. PRONOMIDE)EPA REGISTRATION NUMBER: 62719-578NOTIFICATION OF MINOR LABEL CHANGE PER PR NOTICE 98-10

Enclosed please find labeling for the notification action of Kerb® 3.3 SC. Per discussion between Brian Bret andKable Davis dated April 17, 2013, the following changes are being made by notification at the request of theCalifornia DPR.

1. Changed "Use Restrictions: Hand-spray applications of pronamide are only permitted to ornamentals andnursery stocks." from the master label via use of magenta font. This statement is being removed from thepackage label because all use directions for ornamentals and nursery stock have been removed from thepackage label.

2. Updated statement "The applicator must be familiar with and take into account the information covered inthe following Aerial Drift Reduction Advisory Information section" to "The applicator must be familiarwith and take into account the information covered in the following Aerial Spray Drift AdvisoryInformation section" to match the following section under Aerial Spray Drift Advisory Information.

3. Updated trademark line.

This notification is consistent with the provisions of PR Notice 98-10 and EPA regulations at 40 CFR 152.46, and noother changes have been made to the labeling or the confidential statement of formula of this product. I understandthat it is a violation of 18 U.S.C. Sec. 1001 to willfully make any false statement to EPA. I further understand that ifthis notification is not consistent with the terms of PR Notice 98-10 and 40 CFR 152.46, this product may be inviolation of FIFRA and I may be subject to enforcement action and penalties under sections 12 and 14 of FIFRA

& ? #V&I P"B <"k n °vt«. & n

Contents of Submission

1 5 2013• Transmittal document (this letter)• Application for Pesticide, EPA Form 8570-1• Label entitled Kerb 3.3 SC (H2B / Kerb 3.3 SC / MSTR / Notif / 04-18-13) (46 Pages plus Registration Nofesj'(l

Copy) c c t cH . C C C . G <•

If you require further information, please contact Nestor Algarin, Regulatory Specialist at (317) 337-5148. " c c cc c c t c i c L t

Sincerely,, , -^ f ° c t 'C t <- L C/ / *\ I4/#iW Iv

rt „ A / V

I. t (, C t

Bi/an Br/tegulatory Leader

> 16) 780-7477Enclosures

trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow

H2B'/Kerb 3.3 SC/MSTR/Notir/04-18-13file: Kerb 3.3 SC-578 MSTR 18Apr13N.docx

Kerb" 3.3 SCEPA Reg. No. 62719-578Alternate Brand Names: Kerb SC (sub-label A), Kerb SC T&O (sub-label B)

Master label contains all registered uses for this product »«^w « K

Registration Notes:

Source label text based on EPA accepted label dated October 10, 2012.

Per discussion between Brian Bret and Kable Davis dated April 17, 2013, the following changes are beingmade by notification at the request of the California DPR.

1. Changed "Use Restrictions: Hand-spray applications of pronamide are only permitted toornamentals and nursery stocks." from this label via use of magenta font. This statement is beingremoved from the package label because all use directions for ornamentals and nursery stock havebeen removed from the package label.

2. Updated statement The applicator must be familiar with and take into account the informationcovered in the following Aerial Drift Reduction Advisory Information section" to The applicatormust be familiar with and take into account the information covered in the following Aerial SprayDrift Advisory Information section" to match the following section under Aerial Spray DriftAdvisory Information.

3. Updated trademark line.

trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow

H2B /Kerb 3.3 SC / MSTR / Notn / 04-18-13

[Sub-Label A - Crop Uses]

(Base label):

Pagel

Restricted Use PesticideBecause pronamide has produced tumors in laboratory animals, this product is for retail sale toand use only by Certified Applicators or persons under their direct supervision, and only for thoseuses covered by the Certified Applicator's certification.

Kerb® 3.3 SCHERBICIDE

For use on alfalfa, apple, apricot, artichoke (globe), birdsfoot trefoil, blackberry,boysenberry, blueberry, cherry, clover, crown vetch, endive, escarole, grape,head lettuce, nectarine, peach, pear, plum, prune, radicchio greens, raspberry,rhubarb, sainfoin, winter peas, woody nursery stock ofornamentals, and Christmas trees

Group , •' 3A ' HERBICIDE

Active Ingredient:pronamide: 3,5-dichloro-N-

(1,1-dimethyl-2-propynyl) benzamide 35.6%Other Ingredients 64.4%Total 100.0%

Contains 3.3 Ibs of active ingredient per gallon.

Keep Out of Reach of Children

CAUTION

y 15 2m

Precautionary StatementsHazards to Humans and Domestic Animals

Causes Moderate Eye Irritation

Avoid contact with eyes or clothing.

Personal Protective Equipment (PPE):Applicators and other handlers must wear:• Coveralls over short-sleeved shirt and short pants• Waterproof gloves• Chemical-resistant footwear plus socks• Chemical-resistant headgear for overhead exposure• Chemical-resistant apron when cleaning equipment, mixing or loading

51*50

Discard clothing and other absorbent materials that have been drenched or heavily contaminated witruth'isproduct's concentrate. Do not reuse them. Follow manufacturer's instructions for cleaning/ maintaining'

H2B /Kerb 3.3 SC / MSTR / Notn / 04-18-13Page 2

PPE. If no such instructions for washables exist, use detergent and hot water. Keep and wash PPEseparately from other laundry.

When handlers use enclosed cabs or aircraft in a manner that meet the requirements listed in the WorkerProtection Standard (WPS) for agricultural pesticides [40 CFR 170.240(d) (4-6)], the handler PPErequirements may be reduced or modified as specified in the WPS.

User Safety RecommendationsUsers should:• Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet.• Remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on clean

clothing.• Remove PPE immediately after handling this product. Wash the outside of gloves before removing.

As soon as possible, wash thoroughly and change into clean clothing.

First AidIf in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contactlenses, if present, after the first 5 minutes, then continue rinsing eye. Call a Poison Control Center ordoctor for treatment advice.Note: Have the product container or label with you when calling a Poison Control Center or doctor orgoing for treatment. You may also contact 1-800-992-5994 for emergency medical treatment information.

Environmental HazardsDo not apply directly to water, to areas where surface water is present or to intertidal areas below themean high water mark. Do not contaminate water when cleaning equipment or disposing of equipmentwashwaters.

Agricultural Use RequirementsUse this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFRpart 170. Refer to the label booklet under "Agricultural Use Requirements" in the Directions for Usesection for information about this standard.

Nonrefillable rigid containers 5 gallons or less:

Storage and DisposalDo not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recyciin'cfif,available or puncture and dispose of in a sanitary landfill, or by incineration, or by other procedures'c c

allowed by state and local authorities. . ' , ' ' 'Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank and drain for IG's^cbnds after theflow begins to drip. Fill the container 1/4 full with water and recap. Shake for 10 seconds. 'Pour Kn&atje1-into application equipment or a mix tank or store rinsate for later use or disposal. Dra'iri tor ?0 secpnds,.after the flow begins to drip. Repeat this procedure two more times. Pressure rinse as follows: Empty'the remaining contents into application equipment or a mix tank and continue to drain'for 'lOLseconds afterthe flow begins to drip. Hold container upside down over application equipment or mix tank" or collect <rinsate for later use or disposal. Insert pressure rinsing nozzle in the side of the container, and rinse'at' 'about 40 psi for at least 30 seconds. Drain for 10 seconds after the flow begins to drip. < _ ;

Refillable containers larger than 5 gallons:

H2B/Kerb 3.3 SC / MSTR / Noti.7 04-18-13Page 3

Storage and DisposalDo not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.Container Handling: Refillable container. Refill this container with pesticide only. Do not reuse thiscontainer for any other purpose.Cleaning the container before final disposal is the responsibility of the person disposing of the container.Cleaning before refilling is the responsibility of the refiller. To clean the container before final disposal,empty the remaining contents from this container into application equipment or a mix tank. Fill thecontainer about 10% full with water. Agitate vigorously or recirculate water with the pump for twominutes. Pour or pump rinsate into application equipment or rinsate collection system. Repeat thisrinsing procedure two more times.

Nonrefillable rigid containers larger than 5 gallons:

Storage and DisposalDo not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recycling ifavailable or puncture and dispose of in a sanitary landfill, or by incineration, or by other proceduresallowed by state and local authorities.Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full withwater. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at leastone complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth severaltimes. Turn the container over onto its other end and tip it back and forth several times. Empty therinsate into application equipment or a mix tank or store rinsate for later use or disposal. Repeat thisprocedure two more times. Pressure rinse as follows: Empty the remaining contents into applicationequipment or a mix tank and continue to drain for 10 seconds after the flow begins to drip. Hold containerupside down over application equipment or mix tank or collect rinsate for later use or disposal. Insertpressure rinsing nozzle in the side of the container, and rinse at about 40 psi for at least 30 seconds.Drain for 10 seconds after the flow begins to drip.

Refer to label booklet for Directions for Use.

Notice: Read the entire label. Use only according to label directions. Before using this product, readWarranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies at end of label booklet: dfterms are unacceptable, return at once unopened.

( C I <- <- <•(. t

i (-

In case of emergency endangering health or the environment involving this product, call 1-800-992-5994.

Agricultural Chemical: Do not ship or store with food, feeds, drugs or clothing.

EPA Reg. No. 62719-578 EPA'Est.

^Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow

Produced forDow AgroSciences LLC9330 Zionsville RoadIndianapolis, IN 46268

H2B /Kerb 3.3 SC / MSTR / Not.. /04-18-13

Page 4

NET CONTENTS

H2B /Kerb 3.3 SC / MSTR / Notii / 04-18-13PageS

(cover / shipping container):


Kerb® 3.3 SCHERBICIDE

For use on alfalfa, apple, apricot, artichoke (globe), birdsfoot trefoil, blackberry,boysenberry, blueberry, cherry, clover, crown vetch, endive, escarole, grape,head lettuce, nectarine, peach, pear, plum, prune, radicchio greens, raspberry,rhubarb, sainfoin, winter peas,ornamentals, and Christmas trees

Group :' . 3.-V-*. HERBICIDE


(1,1-dimethyl-2-propynyl) benzamide 35.6%Other Ingredients 64.4%Total 100.0%.



CAUTION



Notice: Read the entire label. Use only according to label directions. Before using this product, readWarranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies at end of label booklet. Jfterms are unacceptable, return at once unopened. , ( { , _

In case of emergency endangering health or the environment involving this product, cail'l -8pO-99?.t59?4.•ic L c l

Agricultural Chemical: Do not ship or store with food, feeds, drugs or clothing. I ~ C C( L

C . < <t

, C C C <

EPA Reg. No. 62719-578 EPt4 Est e

^Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow

Produced forDow AgroSciences LLC9330 Zionsville Road


Indianapolis, IN 46268

NET CONTENTS

H2B /Kerb 3.3 SC / MSTR / Norn•/• 04-18-13Page 7

(Page 1 through end):





Discard clothing and other absorbent materials that have been drenched or heavily contaminated with thisproduct's concentrate. Do not reuse them. Follow manufacturer's instructions for cleaning/ maintainingPPE. If no such instructions for washables exist, use detergent and hot water. Keep and wash PPEseparately from other laundry.





First AidIf in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contactlenses, if present, after the first 5 minutes, then continue rinsing eye. Call a Poison Control Center ordoctor for treatment advice.Note: Have the product container or label with you when calling a Poison Control Center or doctor^pr c

going for treatment. You may also contact 1 -800-992-5994 for emergency medical treatment infcrmatit/n.

Environmental Hazards , , : .Do not apply directly to water, to areas where surface water is present or to intertidal area? .below themean high water mark. Do not contaminate water when cleaning equipment or disposing ot: equipjvien'i,washwaters. t,,. t.. <. ' r-l

c ^ " ^ L \Directions for Use l > '. L T

It is a violation of Federal law to use this product in a manner inconsistent with its labeling. ; t.Read all Directions for Use carefully before applying. '<•

Do not apply this product in a way that will contact workers or other persons, either directly or throughdrift. Only protected handlers may be in the area during application. For any requirements specific toyour state or tribe, consult the agency responsible for pesticide regulation.

H2B /Kerb 3.3 SC / M'STR / Notu / 04-18-13(

PageS

Agricultural Use RequirementsUse this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFRpart 170. This Standard contains requirements for the protection of agricultural workers on farms, forests,nurseries, and greenhouses, and handlers of agricultural pesticides. It contains requirements for training,decontamination, notification, and emergency assistance. It also contains specific instructions andexceptions pertaining to the statements on this label about personal protective equipment (PPE)andrestricted-entry interval. The requirements in this box only apply to uses of this product that are coveredby the Worker Protection Standard.

Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 24 hours.

PPE required for early entry to treated areas that is permitted under the Worker Protection Standard andthat involves contact with anything that has been treated, such as plants, soil or water, is:• Coveralls over short-sleeved shirt and short pants• Waterproof gloves• Chemical-resistant footwear plus socks• Chemical-resistant headgear for overhead exposure

Non-Agricultural Use RequirementsThe requirements in this box apply to uses of this product that are not within the scope of the WorkerProtection Standard for agricultural pesticides (40 CFR Part 170). The WPS applies when this product isused to produce agricultural plants on farms, forests, nurseries or greenhouses.

Keep unprotected persons out of treated area until sprays have dried. •

Storage and DisposalDo not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.

Nonrefillable containers 5 gallons or less:Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recycling ifavailable or puncture and dispose of in a sanitary landfill, or by incineration, or by other proceduresallowed by state and local authorities.Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank and drain for 10 seconds after theflow begins to drip. Fill the container 1/4 full with water and recap. Shake for 10 seconds. Pour rinsateinto application equipment or a mix tank or store rinsate for later use or disposal. Drain for 10 secondsc

after the flow begins to drip. Repeat this procedure two more times.. Pressure rinse as follows: Empjythe remaining contents into application equipment or a mix tank and continue to drain for 10 seconda'afterthe flow begins to drip. Hold container upside down over application equipment or mix tank or collect,rinsate for later use or disposal. Insert pressure rinsing nozzle in the side of the cont&jher,L£nd rinse at::about 40 psi for at least 30 seconds. Drain for 10 seconds after the flow begins to drip. u [ ' < . > . '< c. t < • • « - (

".. (" <•' \Refillable containers larger than 5 gallons: L

Container Handling: Refillable container. Refill this container with pesticide only. Do riot,teuse this <container for any other purpose. ''Cleaning the container before final disposal is the responsibility of the person disposing of the container.Cleaning before refilling is the responsibility of the refiller. To clean the container before final disposal,, ;empty the remaining contents from this container into application equipment or a mix tank. Fill thecontainer about 10% full with water. Agitate vigorously or recirculate water with the pump for two

H2B /Kerb 3.3 SC / MSTR / Notif / u4-18-13Page 9

minutes. Pour or pump rinsate into application equipment or rinsate collection system. Repeat thisrinsing procedure two more times.

Nonrefillable containers larger than 5 gallons:Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recycling ifavailable or puncture and dispose of in a sanitary landfill, or by incineration, or by other proceduresallowed by state and local authorities.Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full withwater. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at leastone complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth severaltimes. Turn the container over onto its other end and tip it back and forth several times. Empty therinsate into application equipment or a mix tank or store rinsate for later use or disposal. Repeat thisprocedure two more times. Pressure rinse as follows: Empty the remaining contents into applicationequipment or a mix tank and continue to drain for 10 seconds after the flow begins to drip. Ho|d containerupside down over application equipment or mix tank or collect rinsate for later use or disposal. Insertpressure rinsing nozzle in the side of the container, and rinse at about 40 psi for at least 30 seconds.Drain for 10 seconds after the flow begins to drip.

Product Information

Kerb® 3.3 SC is effective for the control of a wide range of grasses and certain broadleaf weeds. Theproduct is a soil active herbicide with uptake by sensitive weeds occurring through the roots. Beforeusing this herbicide for a specific crop use, study the following general use information that providesimportant instructions for the safe and effective application of the product.

Use Restrictions: Hand-spray applications of pronamide are only permitted to ornamentals and nurserystocks.

Chemigation: Do not apply this product through any type of irrigation system except as directed underthe Chemigation section or as specified by other labeling.

Spray Drift Management (Aerial Application)Avoiding spray drift at the application site is the responsibility of the applicator. The potential for spraydrift is determined by the interaction of many equipment-and-weather-related factors. The applicator andthe grower are responsible for considering all these factors when making decisions.

The following drift management requirements must be followed to avoid off-target drift movement fromaerial applications to agricultural field crops. These requirements do not apply to forestry applications,public health uses or to applications using dry formulations.

1. The distance of the outer most nozzles on the boom must not exceed 3/4 the length of the wingsfianor rotor. l

(

2. Nozzles must always point backward parallel with the air stream and never be poiri?.edldcsjvnwai:ds <.more than 45 degrees. ' c '• ' '

Where certain states have more stringent regulations, they must be observed. ., < i I(1. t <-

The applicator must be familiar with and take into account the information covered in the following Aerial; (

Spray Drift Advisory Information section. i'

Aerial Spray Drift Advisory Information '

This section is advisory in nature and does not supersede mandatory label requirements..

H2B /Kerb 3.3 SC / MSTR / Nofir / 04-18-13Page 10

The most effective way to reduce drift potential is to apply large droplets. The best drift managementstrategy is to apply the largest droplets that provide sufficient coverage and control. Applying largerdroplets reduces drift potential, but will not prevent drift if applications are made improperly, or underunfavorable environmental conditions (see Wind, Temperature and Humidity, and Temperature Inversionsection of this label).

Controlling Droplet Size:• Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher

rated flows produce larger droplets.• Pressure - Do not exceed the nozzle manufacturer's specified pressures. Use the lower spray

pressures specified for the nozzle. Higher pressure reduces droplet size and does not improvecanopy penetration. When higher flow rates are needed, use higher flow rate nozzles instead ofincreasing pressure.

• Number of nozzles - Use the minimum number of nozzles that provide uniform coverage.• Nozzle Orientation- Orienting nozzles so that the spray is released backwards, parallel to the

airstream will produce larger droplets than other orientations. Significant deflection from thehorizontal will reduce droplet size and increase drift potential.

• Nozzle Type - Use a nozzle type that is designed for the intended application. With most nozzletypes, narrower spray angles produce larger droplets. Consider using low-drift nozzles. Solid streamnozzles oriented straight back produce larger droplets and lower drift than other nozzle types.

Boom Length: For some use patterns, reducing the effective boom length to less than % of the wingspanor rotor length may further reduce drift without reducing swath width.

Application Height: Do not make applications at a height greater than 10 feet above the top of thelargest plants unless a greater height is required for aircraft safety. Making applications at the lowestheight that is safe reduces exposure of droplets to evaporation and wind.

Swath Adjustment: When applications are made with a cross-wind, the swath will be displaceddownwind. Therefore, on the up and downwind edges of the field, the applicator must compensate forthis displacement by adjusting the path of the aircraft upwind. Increase swath adjustment distance withincreasing drift potential (higher wind, smaller drops, etc.).

Wind: Drift potential is lowest between wind speeds of 2-10 mph. However, many factors, includingdroplet size and equipment type determine drift potential at any given speed. Avoid application below 2mph due to variable wind direction and high inversion potential. Note: Local terrain can influence windpatterns. Every applicator must be familiar with local wind patterns and how they affect spray drift.

Temperature and Humidity: When making applications in low relative humidity, set up equipment toproduce larger droplets to compensate for evaporation. Droplet evaporation is most severe whenconditions are both hot and dry. <-"(

c c

Temperature Inversions: Do not apply during a temperature inversion, because drift potential is (?ifjh.Temperature inversions restrict vertical air mixing, which causes small suspended droplets^o remain ;n aconcentrated cloud. This cloud can move in unpredictable directions due to the light variably winds. <-'common during inversions. Temperature inversions are characterized by increasing temperatures'. wUh'•'altitude and are common on nights with limited cloud cover and light to no wind. Theyct>&Qiif to forp asi

(

the sun sets and often continue into the morning. The presence of inversion conditionstc9n be indicatedby ground fog. However, if fog is not present, the movement of smoke from a ground sonrc-? or anaircraft smoke generator can also identify inversion conditions. Smoke that layers and moves later*illy,if:',a concentrated cloud (under low wind conditions) indicates an inversion, while smoke that moves 'upwards and rapidly dissipates indicates good vertical air mixing. t' , I

f (H2B /Kerb 3.3 SC / MSTR / Notir/ 04-18-13

Page 11

Sensitive Areas: Apply this pesticide when the potential for drift to adjacent sensitive areas (e.g.,residential areas, bodies of water, known habitat for threatened or endangered species, non-target crops)is minimal (e.g., when wind is blowing away from the sensitive areas).

Resistance Management

Kerb 3.3 SC is a Group 3 herbicide. Any weed population may contain or develop plants naturallyresistant to this product and other Group 3 herbicides. The resistant biotypes may dominate the weedpopulation if these herbicides are used repeatedly in the same field. Kerb 3.3 SC will not control knownGroup 3 resistant biotypes or labeled weeds. Other resistance mechanisms that are not linked to site ofaction, but specific for individual chemicals, such as enhanced metabolism, may also exist. Appropriateresistance management strategies should be followed.

To delay herbicide resistance:• Where possible, rotate the use of Kerb 3.3 SC or other Group 3 herbicides with different herbicide

groups that control the same weeds in a field.• For best resistance management stewardship, avoid use more than once per season and use

Kerb 3.3 SC in programs with other herbicides with different modes of action.• Where possible, rotate the use of Kerb 3.3 SC or other Group 3 herbicides with different herbicide

groups that control the same weeds in a field.• Use tank mixtures with herbicides from a different group when such use is permitted.« Herbicide use should be based upon an IPM program that includes scouting, historical

information related to herbicide use and crop rotation, and considers tillage (or other mechanical),cultural, biological and other chemical control practices.

• Monitor treated weed populations for resistance development.• Prevent movement of resistance weed seeds to other fields by cleaning harvesting and tillage

equipment and planting clean seed.• Contact your local extension specialist or certified crop advisers for any additional pesticide

resistance management and/or integrated weed management requirements for specific crops andweed biotypes.

Weed Spectrum

Kerb 3.3 SC may be used for both preemergence and early postemergence control of winter annual andperennial grasses and chickweed and for preemergence control only of certain other broadleaf weedsand certain other grasses listed.

Weeds Controlled Both Preemergence and Early Postemergencebarley, foxtail Hordeum jubatumbarley, volunteer Hordeum vulgarebentgrass Agrostis speciesbluegrass, annual Poa annuabluegrass, bulbous Poa bulbosabluegrass, kentucky Poa pratensisbrome, downy (cheatgrass) Bromus tectorumchickweed, common Stellaria mediachickweed, mouse-ear Cerastium vulgatumfescue, tall Festuca arundinaceaegoatgrass, jointed Aegilops cylindricaoat, volunteer Avena salivaoat, wild ' Avena fatuaorchardgrass Dactylis glomerataquackgrass Agropyron repensrye, volunteer Secale cerealeryegrass, Italian Lolium multiflorum

C C (, (.(. C

C L C L

C I- C 0t

L C L C

< 1. < I (.t, (

C. C C C t

( (, C t. I (


ryegrass, perennial Lolium perennevelvetgrass Holcus lanatuswheat, volunteer Triticum aestivum

Weeds Controlled Only Preemergencebarnyardgrass Echinochloa crus-gallicanarygrass Phalaris canariensiscarpetweed Mollugo verticillatacrabgrass, large Digitaria sanguinalisdodder, field Cuscuta campestrisfoxtail, yellow Setaria lutescensgoosefoot, nettleleaf Chenopodium muralegoosegrass Eleusine indicahenbit Lamium amplexicauleknotweed, prostrate Polygonum avicularelambsquarters, common Chenopodium albumlovegrass Eragrostis diffusamallow, little (cheeseweed) Malva patvifloramorningglory, annual Ipomoea purpureamustard, wild Brassica kabernettle, burning L/rt/ca urensnightshade, black Solanum nigrumnightshade, hairy Solanum sarrachoidespanicum, fall Panicum dichotomiflorumpurslane, common Portulaca oleracearadish, wild Raphanus sativusrocket, London Sisymbrium irioshepherdspurse Capsella bursa-pastorissmartweed, pale Polygonum lapathifoliumsorrel, red (from seed) Ftumex acetosellatomato, volunteer Solanum esculentum

Note: The weed species controlled by Kerb 3.3 SC are dependent on the rate used, specific crop cultureinvolved, and the associated conditions of temperature, soil type and moisture availability. Refer tospecific crop use directions for weed species controlled.

DosageThe rate of Kerb 3.3 SC required will vary depending on the crop culture involved and weed species to becontrolled. See specific crop use directions for all dosage instructions. All dosage instructions listed tinethis label are in terms of pints of product or pounds of active ingredient per broadcast acre. For ba'ndsic

application, reduce the amount of Kerb 3.3 SC used per acre according to the following formula: < <• <- <•C I- C L

Band Width, (in inches) Rate per Amount Needed per AcreRow Width (in inches) x Acre Broadcast = for Band Application

Timing and Application c c ( . " ' c ^ \ c c

Unless specific directions are given under the crop to be treated, apply Kerb 3.3 SC in Jrjfcjfail or early L

winter, when temperatures do not exceed 55°F, but prior to freeze-up. Best weed control results<occu-when Kerb 3.3 SC is applied preemergence to the weeds and when application is followed by rainfail'oY l

irrigation to move the product into the root zone of the germinating weeds. >. <•i. (. L t

Mix Kerb 3.3 SC thoroughly in clean water at the required concentration and apply uniformly as a spray.For ground application, use a conventional low-pressure herbicide sprayer equipped with flat fan nozzlesspaced and calibrated to uniformly deliver 20 to 50 gallons of spray per acre. For aerial applications

H2B /Kerb 3.3 SC / MSTR / Nox» / 04-18-13Page 13

apply in a coarse droplet spray at 5 to 10 gallons per acre. Accurately calibrate spray equipment prior toeach use.

Compatibility with Other PesticidesKerb 3.3 SC is compatible with most commonly used agricultural pesticides, crop oil concentrate andadjuvants. When preparing tank mixes, consult spray compatibility charts or State Cooperative ExtensionService Specialists prior to actual use.

Effect of Soil Type, Moisture and TemperatureKerb 3.3 SC is most active in coarse to medium textured soils of low organic matter and relatively inactivein peat or muck soils or mineral soils high in organic matter content at rates specified in this label.Herbicidal activity is best in soils containing less than 4 percent organic matter. Use in soils with higherorganic matter may result in inconsistent or incomplete weed control.

The herbicidal activity of Kerb 3.3 SC is mainly through root absorption in sensitive weed species. Rain,melting snow or irrigation is essential following treatment to move Kerb 3.3 SC into the root zone ofgerminating weeds.

Under field conditions, Kerb 3.3 SC will remain relatively stable with little loss of herbicidal activity whensoil temperatures are less than 55°°F. As soil temperatures increase, degradation of the active ingredienttakes place. Kerb 3.3 SC may degrade rather quickly if left exposed on the soil surface in warm weather.If Kerb 3.3 SC is applied when air temperatures exceed 85°F, the treatment must be soil incorporated to ashallow depth (top two to three inches) or watered into the soil as soon as possible.

Cultural ConsiderationsFor best results apply Kerb 3.3 SC to a trash-free soil surface. Clean cultivation before application ispreferable, but not necessary. To obtain optimum weed control in areas not clean cultivated, the area tobe treated must be free of surface litter (dead or decaying crop and weed debris, mowing clippings, etc.).Trash-free areas create ideal conditions for rapid movement of Kerb 3.3 SC into the weed root zonefollowing rain or irrigation.

Rotation Crop Planting InformationFollow the directions given below when rotation crops will be planted to areas previously treated withKerb SC:

Waiting Period in Days before Planting the Cro

Amount ofKerb 3.3 SC

Applied(pint/ Acre)

1.252.53.55.0

Root andTuber

Vegetables90909090

LegumeVegetablesand Cotton

9090120150

os Indicated (1):

Brassica LeafyVegetables,Cucurbits,Fruiting

Vegetables andBulb Vegetables

90120180210

LeafyVegetables

(exceptBrassica

Vegetables),Crop Group <

4(2) i.so c ' ;30so ^ ;•30 """

< c c,C '.

(. -i C

t c c(

i. c t

< j Cereal1 Gravns L

t

• ' : 365 ' '365, " '.

".- 365 "36,5 r

(1) There are no plant back restrictions for Kerb SC when rotating to artichokes, grapes, berry frilits,pome fruits or stone fruits. ,l , I

(2) Crop Group 4 as defined under 40CFR 180.41. ''' ' '

Whether Kerb 3.3 SC is bed-topped, banded or broadcast, the beds must be knocked down and the fieldcross-disced before rotation crops other than artichokes, head lettuce, endive, radicchio or escarole areplanted.

H2B /Kerb 3.3 SC / MSTR / Noti,, 04-18-13Page 14

Where the Kerb 3.3 SC treatment is to be followed by a rotation crop within 180 days of application, bed-topped or banded applications are suggested.

Artichoke (Globe)

California (Only)

Product InformationKerb 3.3 SC is a selective herbicide for the control of susceptible weeds in either established (ratoon) ortransplanted globe artichokes.

Weeds ControlledKerb 3.3 SC is effective at 5.0 to 9.5 pints of product (2 to 4 Ib active ingredient) per treated acre for thepreemergence control of the following weeds:

barley, volunteerbluegrass, annualchickweed, commonchickweed, mouse-earfoxtail, yellowgoosefoot, nettleleafhenbitknotweed, prostratemallow, little (cheeseweed)mustard, wildnettle, burningnightshade, hairyoat, volunteeroat, wildryegrass, Italianwheat, volunteer

Kerb 3.3 SC Rate(Per Broadcast Acre) 1

Crop

globe artichokes(establishedratoon)

globe artichokes(newlytransplantedcrowns)

Weeds

susceptible annualgrasses,volunteer grainsand broadleafweeds

susceptible annualgrasses,volunteer grainsand broadleafweeds

DependableRainfall orOverheadIrrigation(pt/Acre)

5.0

9.5

5.0

LessDependable

Rainfall or FurrowIrrigation

Do not apply

Do not apply

Do not apply

Comments < c c ct iC I C C

sandy soils, sandy ^ c c <loams and silt loaiviac

C t C t C ( CI t I

silt, silty clayMoams-,' i f ,

clay loa^isjand clay c 'SOilS " r,"c "

all soil 'types oxceptpeat ahcfmuck soils

( C t (- CI-

< ' <C L '-

Dosage instructions listed on this label are in terms of pints Kerb 3.3 SC per acre broadcast application.For banded treatments down artichoke rows or between rows, reduce the amount of Kerb 3.3 SC usedper acre according to the following formula:

H2B /Kerb 3.3 SC / MSTR / Nofn / 04-18-13Page 15

Band Width (in inches) Rate per Amount Needed per AcreRow Width (in inches) x Acre Broadcast = for Band Application

Dosage and TimingEstablished Ratoon ArtichokesApply Kerb 3.3 SC in a single postemergence application to the crop after tillage operations arecompleted and shoot regrowth of the artichokes has occurred. Apply Kerb 3.3 SC preemergence to theweeds and before new artichoke leaves are greater than 14 to 16 inches long. Apply Kerb 3.3 SC in abanded treatment over the crop row at the rate of 5.0 to 9.5 pints of product per broadcast acre (seedosage rate for soil type in chart). A second application of Kerb 3.3 SC at the same rate may be applied60 days or more prior to harvest in a banded treatment directed to the untreated soil surface between theartichoke rows after the ditching operation is completed later in the season.

Transplanted Artichoke CrownsApply Kerb 3.3 SC in a single application after transplanting the crowns but before new shoots havedeveloped 3 to 4 new leaves. Apply Kerb 3.3 SC preemergence to the weeds and banded over the croprow at the rate of 5.0 pints of product per broadcast acre. Do not use higher rates of Kerb 3.3 SC than5.0 pints per acre in one season. A second application of Kerb 3.3 SC at the same rate may be applied60 days or more prior to harvest in a banded treatment directed to the untreated soil surface between theartichoke rows after the ditching operation is completed later in the season.

ApplicationKerb 3.3 SC may be applied by aircraft or ground sprayer for preemergence control of susceptiblegrasses and broadleaf weeds in established ratoon artichokes or transplanted artichoke crowns.

Aerial: Mix the specified amount of Kerb 3.3 SC in a minimum of 10 gallons of water per acre for aerialapplication. Avoid drift to all other crops and non-target areas.Ground: Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly with a groundsprayer in 20 to 50 gallons of water per acre. Reduce dosage and volume accordingly for bandedtreatments. Use a standard low pressure herbicide sprayer equipped with flat fan nozzles that giveuniform spray distribution.

Moisture and Irrigation RequirementsMoisture is necessary to activate Kerb 3.3 SC in the soil and move it into the root zone of germinatingweeds. In artichoke culture natural rainfall or supplementary overhead irrigation within 1 to 3 days afterthe application of Kerb 3.3 SC is essential for effective weed control. For best results use overheadsprinkler irrigation equipment to irrigate the field with 1 to 2 inches of water after application of Kerb 3.3SC.

Effect of Soil TypeDo not apply Kerb 3.3 SC to highly organic or muck soils because herbicidal activity is loweredsignificantly in these soils. Follow dosage rates suggested in the dosage instruction chart according to-the soil type for established and transplanted artichokes.

Rotation CropsArtichokes are generally long-term perennial crops. In the event that artichokes arerotational crop will be planted within one year where Kerb 3.3 SC was applied at the ratetot5.0 pi-its ofc

product per acre, follow the rotational crop requirements specified in the Product Inforrrfatio'h sectien of tthis label under Rotational Crop Planting Information. <; L i <. ' c ^", ; c c c c

Artichoke - Specific Use Restrictions :,.,,!,.« Do not apply more than 4 Ib/acre active ingredient (9.5 pt/acre of Kerb 3.3 SC) to established * - " '

artichokes or more than 2 Ib/acre active ingredient (5.0 pt/acre of Kerb 3.3 SC) to newly transplanted^artichokes or make more than one "in-row" application per season. '' ct

• Do not harvest artichokes within 60 days of final application.

H2B /Kerb 3.3 SC / MSTR / Notir/ 04-18-13Page 16

Do not make more than one application to the artichoke row per season. Do not make more than oneapplication to the untreated soil between the rows per season.

Blackberry/Boysenberry/Raspberry

(Idaho, Oregon and Washington Only)

Product InformationKerb 3.3 SC is a selective herbicide for fall and winter applications to established blackberries,boysenberries and raspberries for both preemergence and postemergence control of certain winterannual and perennial grasses.

DosageKerb 3.3 SC may be applied at the rate of 2.5 to 7.0 pints of product (1 to 3 Ib active ingredient) per acrebroadcast application. The rate will depend on the weed species present and the soil texture of the sitebeing treated. Follow the weed control instructions listed in the chart below:

Pints of Kerb 3.3 SC Per Broadcast Acre1

Weeds Controlledbluegrass, annualquackgrassryegrass, perennial

Dependable Rainfall orOverhead Irrigation2

2.5-5.05.0-7.05.0-7.0

CommentsUse low rates on light tomedium soils and high rateson heavy soils

Dosage rates specified are in pints of Kerb 3.3 SC per acre broadcast application. Reduce ratesaccordingly for banded applications.

2 For effective weed control, rainfall or overhead irrigation is essential following the application of Kerb3.3 SC.

Crop ToleranceEstablished cane fruit are tolerant to specified rates of Kerb 3.3 SC. Newly transplanted blackberries,boysenberries and raspberries must be well rooted and transplanted for at least 3 months prior to theapplication of Kerb 3.3 SC.

Timing and ApplicationApply Kerb 3.3 SC only during the fall or winter months. For optimum results, apply Kerb 3.3 SC duringNovember or December. Do not make applications when the ground is frozen. Mix the specified amountof Kerb 3.3 SC in clean water and apply uniformly with a low pressure ground sprayer in 20 to 50 gallonsof water per acre.

Blackberry/Boysenberry/Raspberry- Specific Use Restrictions c . c c c c c• Do not apply more than 3 Ib/acre active ingredient (7.0 pt/acre of Kerb 3.3 SC) or make more trlar'i 'one

application of Kerb 3.3 SC per season. [ c c c

Blueberry

Product Information , me < ' < - tKerb 3.3 SC is a selective herbicide for fall and winter applications to established blueberri-as for both'preemergence and postemergence control of winter annual and perennial grasses and chickweeo'and'..preemergence control of certain broadleaf weeds. . l

Dosage Instructions


Kerb 3.3 SC may be applied at the rate of 2.5 to 5.0 pints of product (1 to 2 Ib active ingredient) per acrebroadcast application. The rate will depend on the weed species present. Follow the weed control ratesspecified in the chart below:

Weeds Controlledbluegrass, annualbrome, downy (cheatgrass)chickweedoat, wildsorrel, red (from seed)bentgrassbluegrass, Kentuckyfescue, tallorchardgrassquackgrassryegrass, perennialvelvetgrass

Pt/Acre Kerb 3.3 SC1


2.5

5.0



Crop ToleranceEstablished blueberry plants are tolerant to specified rates of Kerb 3.3 SC. Do not apply Kerb 3.3 SC tonewly transplanted blueberries until roots are well established.

Timing and ApplicationApply Kerb 3.3 SC in a single application during the fall or early winter months, but prior to soil freeze-upand snow cover. Optimum herbicidal activity occurs when applications are made under cool temperatureconditions (55°°F or less) and are followed by rainfall or overhead irrigation.

Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly with a low pressure groundsprayer in 20 to 50 gallons of water per acre.

Blueberry - Specific Use Restrictions• Do not apply more than 2 Ib/acre active ingredient (5.0 pt/acre Kerb 3.3 SC) or make more than one

application of Kerb 3.3 SC per year.

c c t c(

' c c c c

Alfalfa, Clover, BirdsfootTrefoil, Crown Vetch ^^and Sainfoin Grown for Forage and Seed < ' t l t < . < .

: < vt c c ^ c t

Product Information t - t tt '

t c ^c

Kerb 3.3 SC is a selective herbicide for fall or winter applications to alfalfa, clover, birdsfoof trefoil, 'crewjvvetch and sainfoin for both preemergence and postemergence control of susceptible winterannual anrjperennial grasses and for preemergence control of certain broadleaf weeds.

.i

DosageKerb 3.3 SC may be applied at the rate of 1.25 to 5 pints of product (0.5 to 2 Ib active ingredient) per ^ •• <broadcast acre application. The required rate will depend on the weed species present as well as thetype of irrigation used or the dependability of rainfall following application. The effective rate will be

H2B /Kerb 3.3 SC / MSTR / NotV, 04-18-13Page 18

higher in low rainfall areas or where furrow irrigation is used than in areas of dependable rainfall or whereoverhead irrigation is practiced. Follow the weed control instructions given in the chart below for fall orwinter applications of Kerb 3.3 SC:

Pints Kerb 3.3 SC Per Broadcast Acre

Weeds ControlledApply preemergence or

postemergence to these weeds:barley, foxtailbluegrass, annualbrome, downy (cheatgrass)chickweedgrain, volunteeroat, wildryegrass, Italianbluegrass, Kentuckyorchardgrassryegrass, perennialquackgrassApply preemergence only to these

weeds:sorrel, red (from seed)mustard, wildradish, wildrocket, Londonshepherdspurse

Dependable Rainfallor

Overhead Irrigation1.25-2.0

2.0 - 2.5

2.5-3.52.0-2.5

3.5

Low Rainfallor

Furrow Irrigation2.0-2.5

2.5-3.5

3.5-5.02.5-3.5

5.0

Note: For control of spring germinating cheatgrass and dodder, refer to specific instructions under SpringUse Directions for Established Alfalfa.

Timing and ApplicationApply Kerb 3.3 SC during the fall or winter months. Optimum herbicidal activity occurs when applicationsare made under cool temperature conditions (55°to 60°F) and are followed by rainfall or overheadirrigation. Applications must always be made before soil freeze-up.

Applications may be made postemergence to established, actively growing or dormant forage legumes orto new plantings after the legume has reached the trifoliate leaf stage. In established forage legumestands, applications must be made after the last cutting when the weather and soil temperatures are cool.In fall seeded forage legumes, applications must be made after legumes have reached the trifoliate leafstage. In spring-seeded forage legumes, applications of Kerb 3.3 SC must be made the following fefifof Learly winter to control winter annual and perennial grasses. Do not use Kerb 3.3 SC as a preplant o°rccc

preemergence treatment or before the trifoliate leaf stage of the legume has developed in new plantings' c

as injury to the legume stand may result. Remove or disperse trash, crop residues and ashes before "treatment. ;"!"- <• c\;c<.Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly with a ground sprayer atc20 cto 50 gallons per acre. Use a conventional herbicide sprayer equipped with flat fan nozzles £t 40 td-66c c c

Rotation Crops 1. 1 1 'Where rotation crops are to follow within one year of the Kerb 3.3 SC treatment to alfalfa, clover, birdafopt;trefoil, crown vetch or sainfoin, follow the directions given in the Product Information section of this label ' 'under Rotation Crop Planting Information.

H2B /Kerb 3.3 SC / MSTR / Nov., / 04-18-13Page 19

Specific Use Restrictions - Alfalfa, Clover, Birdsfoot Trefoil, Crown Vetch and Sainfoin• Do not use more than 2 Ib/acre active ingredient (5 pt/acre Kerb 3.3 SC) per year.• Do not harvest alfalfa seed within 50 days after application.• Do not graze or harvest for forage or dehydration within the following intervals after application:

Alfalfa - below 3.5 pt /acre Kerb 3.3 SC(west of Mississippi River)

Alfalfa -3.5-5 pt /acre Kerb 3.3 SC(west of Mississippi River)

Clover, birdsfoot trefoil, crown vetch, sainfoin(entire U.S.) and alfalfa - Up to 5 pt /acreKerb 3.3 SC(East of Mississippi River)

25 days

45 days

120 days

Spring Use Directions for Established AlfalfaDodder Control in Alfalfa Seed Crops

Only In California, Colorado, Idaho, Nevada, Oregon, Utah and Washington

Product InformationFor effective control Kerb 3.3 SC must be moved into the soil either by rainfall or irrigation before thegermination of dodder. Preferably, irrigation must be made within 1 to 3 days following the Kerb 3.3 SCapplication, but can be delayed up to 2 weeks if necessary provided that irrigation precedes doddergermination. If irrigation of the field treated with Kerb 3.3 SC must be delayed, a light mechanicalincorporation (maximum 1-inch depth) must follow the Kerb 3.3 SC application and the field irrigatedwithin 2 weeks.

When using flood type or overhead sprinkler irrigation systems the amount of irrigation following the Kerb3.3 SC application must not exceed one inch of water. Excess irrigation following the Kerb 3.3 SCapplication and prior to germination of dodder may decrease the effectiveness of Kerb 3.3 SC.

Dosage and TimingFor effective control, Kerb 3.3 SC must be applied before dodder germinates. Follow directions givenbelow^ depending on method of irrigation used:

Furrow Irrigation: Apply Kerb 3.3 SC at the rate of 3.5 to 5.0 pints of product (1.5 to 2 Ib activeingredient) per acre. Incorporate lightly at time of application and irrigate within seven days.Flood Irrigation: Apply Kerb 3.3 SC at the rate of 3.5 pints of product (1.5 Ib active ingredient) per acre.Flood field with 0.5 to 1.0 inch of water within 1 to 3 days after application.Overhead Sprinkler Irrigation: Use same directions as given above for flood irrigation. c

c c'' cExcessive amounts of irrigation water following Kerb 3.3 SC application may adversely affect thec °"herbicidal activity.

(SPRING APPLICATIONS)Cheatgrass Control in Established Alfalfa (Spring Applications)

(. <.c c

Dosage and TimingSpring application of Kerb 3.3 SC will control cheatgrass if application is made when^cheatyrass hastrecently germinated or expected to germinate. Apply Kerb 3.3 SC as a broadcast application at the rateof 2.0 to 2.5 pints of product (0.8 to 1 Ib active ingredient) per acre.

Head Lettuce/Endive/Escarole/Radicchio

H2B/Kerb 3.3 SC / MSTR / Notn / 04-18-13Page 20

Greens

Product InformationKerb 3.3 SC is a selective herbicide for the control of certain annual grasses and broadleaf weeds indirect seeded or transplanted head lettuce, endive, escarole and radicchio greens.

Weeds ControlledKerb 3.3 SC is effective at 2.5 to 5.0 pints of product (1 to 2 Ib active ingredient) per treated acre for thepreemergence control of the following weeds:

Grassesbarley, foxtailbarley, volunteerbarnyardgrassbluegrass, annualbrome, downy (cheatgrass)canarygrasscrabgrassfoxtail, yellowgoosegrasslovegrassoats, volunteerpanicum, fallryegrass, Italianrye, volunteerwheat, volunteer

Broadleaf Weedscarpetweedchickweed, commongoosefoot, nettleleafhenbitknotweedlambsquarters, commonmorningglory, annualmustard, wildnettle, burningnightshade, blacknightshade, hairypurslane, commonrocket, London c l l c r 'shepherdspurse c 'r,' c c

smartweed, pale , LLtomato, volunteer

Kerb 3.3 SC may be applied at the rate of 2.5 to 5.0 pints of product (1 to 2 Ib active ingredient) per acre ••broadcast application. The dosage rate required is dependent on soil texture and methqd pf irrigation.c'At'rates specified on this label, Kerb 3.3 SC may not be applied for weed control on highly orcsnib (peat andmuck) soils. ; , , < ! •

i

For head lettuce, endive, escarole and radicchio greens, follow the dosage instructions listed in chart,l t

below: . '' '

I Pints Kerb 3.3 SC Per Broadcast Acre1 I

rH2B /Kerb 3.3 SC / MSTR / Motif/ 04-18-13

Page 21

Weedssusceptible annualgrassesbroad leaf weeds

Dependable Rainfallor

Overhead Irrigation2.5-3.5

(surface application)3.5-5.0

(surface application)

Less DependableRainfall or

Furrow Irrigation3.5-5.0

(soil incorporation)5.0

(soil incorporation)

Soil TextureGroup2

coarse and mediumtextured soilsfine textured soils

1 Reduce dosage rate accordingly for banded applications.2 Soil Texture Group

Coarse: sand, loamy sand, sandy loamMedium: loam, silt loam, silt, sandy clay loamFine: silty clay loam, clay loam, sandy clay, silty clay, clay

Crop ToleranceMost varieties of head lettuce are highly tolerant of the specified rates of Kerb 3.3 SC. Do not use morethan 3.5 pints of product (1.5 Ib active ingredient) per acre on val temp, grande verde and prima verdevarieties of crisp head lettuce, or on endive, escarole and radicchio greens.

Timing and ApplicationKerb 3.3 SC can be applied either pre-plant, post-plant or postemergence to head lettuce, endive,escarole or radicchio greens in banded, bed-topped or broadcast applications. Most applications will bemade preemergence to the crop just before or after planting and preemergence to the weeds.Applications can be made before or after thinning of head lettuce but must be made prior to weedemergence. For split application, see directions below.

Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly with a ground sprayer in 20 to50 gallons of water per treated acre. Reduce dosage and volume accordingly for banded treatments.Use a standard low pressure sprayer equipped with flat fan nozzles that provide uniform spraydistribution.

Split ApplicationKerb 3.3 SC application can be split so that part of the maximum allowable application rate of the productcan be initially applied to head lettuce, endive, escarole or radicchio greens, and the balance of themaximum allowable application rate can be applied up to 10 days later. Total amount of Kerb 3.3 SCapplied must not exceed the maximum rates indicated on this label, up to 5 pts of product (2 Ib activeingredient) per acre per crop season.

The value of split applications and optimal timing for the second application will vary depending onseason, weed species present and environmental conditions.

Application Moisture Requirements c c c <- <- c

Kerb 3.3 SC acts mainly through root absorption, therefore it is necessary to move Kerb 3.3 SC into vrieroot zone of germinating weeds to provide effective control. This can be accomplished by overheaoc *•c

sprinkler irrigation, by rainfall or by shallow mechanical incorporation. l c c e

I I I < I I <• '

Sprinkler Irrigation l e' ^ &Kerb 3.3 SC can be applied to the soil surface withoutjnechanical incorporation after planting or 'c c

transplanting if overhead irrigation is used. An initial irrigation of 1 to 2 inches must promptly follo^jv trie*application of Kerb 3.3 SC, especially in hot weather. t l!,L ' i . t

Applications Dependent on Natural Rainfall > t > > > <In areas of dependable natural rainfall, Kerb 3.3 SCs can be applied as a surface treatment L tpreemergence to the weeds. Applications to direct seeded or transplanted head lettuce, endive, esoaVobor radicchio greens are most successful when followed by 1/2 to 1 inch of rainfall within two to three daysafter application.

rH2B /Kerb 3.3 SC / MSTR / Motif/ 04-18-13

Page 22

Furrow Irrigation -Mechanical IncorporationWhere rainfall is not dependable or supplementary overhead irrigation is not used, shallow pre-plantincorporation is required. PTO-driven incorporators or rolling cultivators that thoroughly mix Kerb 3.3 SCinto the top 2 inches of soil are suggested.

Incorporation must be simultaneous or immediately after application of Kerb 3.3 SC, especially in hotweather. Irrigation must be started as soon as possible.

Where furrow irrigation is used, spray application and mechanical incorporation must be made after bedshave been formed. Kerb 3.3 SC will not be as effective if disced in prior to bed shaping.Hoeing, thinning or shallow cultivation of soil treated with Kerb 3.3 SC will not destroy its herbicidalactivity.

TemperatureKerb 3.3 SC is not highly volatile, but it may degrade rather quickly if left exposed on the soil surface inwarm weather. If applied when air temperatures exceed 85°F it must be shallow incorporated or wateredinto the soil as soon as possible, preferably within 1 or 2 days.

Rotation CropsFollow the directions given in the Product Information section of this label under Rotation Crop PlantingInformation.

Head Lettuce/Endive/Escarole/Radicchio Greens - Specific Use Restrictions• Do not apply Kerb 3.3 SC to head lettuce, endive, escarole, radicchio varieties that will be harvested

less than 55 days after treatment.• Do not apply more than one application of Kerb 3.3 SC to each crop of head lettuce, endive, escarole

or radicchio greens, or more than twice if split application is made.• Do not apply Kerb 3.3 SC to leaf lettuce.• Do not apply more than 2 Ib/acre active ingredient (5.0 pt/acre Kerb 3.3 SC) per acre per crop

season.

Grass and Weed Control in Head Lettuce - Aerial Application(Arizona and California Only)Kerb® 3.3 SC herbicide may be applied by aircraft for preemergence control of susceptible grasses andbroadleaf weeds in head lettuce. Kerb 3.3 SC must be applied at the dosage rate of 2.5 to 5.0 pints ofproduct (1.0 to 2.0 pounds active ingredient) per treated acre depending on soil type (refer to commentsunder Dosage Chart above). Mix the specified amount of Kerb 3.3 SC in 10 to 20 gallons of water peracre for aerial application. For aerial applications of Kerb 3.3 SC on head lettuce, consult the labelcarefully for plantback information. Avoid drift to all other crops and non-target areas.

Chemigation Application on Head Lettuce, Endive, Escarole or Radicchio Greens(For Use in Arizona and California) , ' ' • ' ' ' ,

Kerb 3.3 SC herbicide may be applied by chemigation for weed control in direct seeded or transplantedc c

head lettuce, endive, escarole or radicchio greens but must be applied prior to weed emergence. 'c c c

Application may be made preemergence to head lettuce, endive, escarole, or radicchiOcgresifs orpostemergence to head lettuce. Do not apply postemergence to endive, escarole, or radicchio-c < ' •greens. . L l '!•.' 'c I3 L I < C L

I C I-

Application Rate: Apply Kerb 3.3 SC at the rate of 1.25 to 2.5 pints per acre (0.5 to 1.6 II; active \'ingredient per acre) depending upon soil type, weed species and level of infestation.

Pints Kerb 3.3 SC Per |

cH2B /Kerb 3.3 SC / MSTR / Notify 04-18-13

Page 23

Weeds

Susceptible annualgrasses and broadleafweeds

Acre ChemigationApplication 1

1 .25 to 2.5(Surface application)

1.25 to 2.5(Surface application)

Soil Texture Group '

Coarse and mediumtextured soilsFine textured soils

1 Soil Texture GroupCoarse: sand, loamy sand, sandy loamMedium: loam, silt loam, silt, sandy clay loamFine: silty clay loam, clay loam, sandy clay, silty clay, clay

Split Chemigation Application: Kerb 3.3 SC chemigation application can be split so that part of themaximum allowable application rate of the product can be initially applied to head lettuce, endive, escarole orradicchio greens, and the balance of the maximum allowable application rate can be applied up to 10 dayslater. Total amount of Kerb 3.3 SC applied must not exceed 2.5 pints product (1 Ib. active ingredient) per acreper crop season. The Pre-harvest Interval (PHI) of 55 days must be observed.

Application Moisture Requirements: Kerb 3.3 SC acts mainly through root absorption; therefore, it isnecessary to move Kerb 3.3 SC into the root zone of germinating weeds to provide effective control. Thiscan be accomplished by applying a minimum of 0.75 inch of overhead sprinkler irrigation when applied bychemigation to fields that have been pre-irrigated.

Time of Treatment: Applying Kerb 3.3 SC after initial irrigation of the crop may help limit movement ofthe herbicide below the root zone of germinating weeds and may improve weed control. Depending onclimatic conditions, chemigation generally should be within three to six days after the first post-plantirrigation. The following recommendations are provided as a general guideline for AZ and CA desertgrowing conditions. Optimal chemigation timing for other growing areas may differ from those listedbelow. :

Timingearlymidlate

DateSept. 1 toOct15Oct 15 to Dec 15

Dec 15 to Jan

Application Timing(Days After Starting Sprinklers)

1 -33-65-6

Chemigation Equipment: Kerb 3.3 SC may be applied through center pivot, lateral move, solid set orhand move systems capable of uniform delivery of the herbicide. Solid set or hand move systems shouldbe capable of delivering a uniform pressure of 60 to 70 psi at all nozzles. Pipes and nozzles must bepositioned to provide uniform coverage of the treatment area. Placement of nozzles in diamond shaped(») pattern will provide more uniform coverage. Do not apply when wind velocity is sufficient to distortuniformity of coverage or cause drift to susceptible non-target plants.

The injection-metering pump must be calibrated as specified by the manufacturer and checkedperiodically during application to insure proper operation. Pesticide injection hoses, which connect. <. <chemigation-metering equipment to the sprinkler irrigation system, should be of braided reinforced «. cL

construction with an internal tube made of nylon, cross-linked polyethylene, or high-density polyetrK/'er.e.

Mixing: Mixing tanks should be large enough to contain the entire amount of herbicidG^ixture for thearea to be treated. Use a minimum of 3 gallons of water per 1.2 pints of Kerb 3.3 S(l. AgiWion pv the t

herbicide mixture is required at all times during mixing and application (injection), ^["l ' ll

i. (- t C (.

Application: For hand move or solid set systems set to deliver about 1/10 inch of wafer'pter hour, KeVb3.3 SC should be injected over a period of 1 to 2 hours. Once the herbicide has been irijected, continueirrigation for at least the time required to flush the system and deliver additional irrigation sufficient-tc < <incorporate the herbicide into the upper inch of soil.

H2B/Kerb 3.3 SC / MSTR / Notii / 04-18-13Page 24

Chemigation Use Restrictions for Head Lettuce, Endive, Escarole or Radicchio Greens• Do not apply Kerb 3.3 SC to direct seeded varieties of head lettuce, endive, escarole and radicchio

greens that will be harvested less than 55 days after treatment or transplanted head lettuce that willbe harvested less than 35 days after application.

• Do not apply more than one application of Kerb 3.3 SC per season to head lettuce, endive, escarole,or radicchio greens or more than two applications if split application is made.

• Do not apply Kerb 3.3 SC postemergence to endive, escarole, or radicchio greens.• Do not apply more than 1 Ib/acre active ingredient (2.5 pts./acre of Kerb 3.3 SC) per crop season.

Chemigation InstructionsDo not apply this product through any irrigation system unless the instructions for Chemigation arefollowed. Apply this product only through continuously moving center pivot, lateral move end tow, solidset, or hand move irrigation systems. Do not apply this product through any other type of irrigationsystem.

Crop injury, lack of effectiveness, or illegal pesticide residues in the crop can result from nonuniformdistribution of treated water.

If you have questions about calibration, you should contact State Extension Service specialists,equipment manufacturers, or other experts.

Do not connect an irrigation system (including greenhouse systems) used for pesticide application to apublic water system unless the pesticide label-prescribed safety devices for public water systems on thepesticide container label are in place.

A person knowledgeable of the Chemigation system and responsible for its operation or under thesupervision of the responsible person, shall shut the system down and make necessary adjustmentsshould the need arise.

Sprinkler Chemigation1. Do not connect an irrigation system (including greenhouse systems) used for pesticide application to

a public water system.2. The system must contain a functional check valve, vacuum relief valve, and low-pressure drain

appropriately located on the irrigation pipeline to prevent water source contamination from back-flow.3. The pesticide injection pipeline must contain a functional automatic, quick closing check valve to

prevent the fluid back toward the injection pump.4. The pesticide injection pipeline must also contain a functional, normally closed, solenoid-operated

valve located on the intake side of the injection pump and connected to the system interlock toprevent fluid from being withdrawn from the supply tank when the irrigation system is eitherautomatically or manually shut down.

5. The system must contain functional interlocking controls to automatically shut off the pesticideinjection pump when the water pump motor stops.

6. The irrigation line or water pump must include a functional pressure switch, which will stop the waterpump motor when the water pressure decreases to the point that pesticide distribution is adversely^c

affected. .. <. c,.7. Systems must use a metering pump, such as a positive displacement injection pump (e.g., diaphragm

pump) effectively designed and constructed of materials that are compatible with pesticides and l

capable of being fitted with a system interlock. ^ ^ "c c,'\ \8. Do not apply when wind speed favors drift beyond the area intended for treatmentc l ' ' " c c"

Rhubarb

(Oregon and Washington Only)

H2B /Kerb 3.3 SC / MSTR / Nofn / 04-18-13Page 25

Product InformationKerb 3.3 SC is a selective herbicide for fall and winter applications to established rhubarb for bothpreemergence and postemergence control of winter annual and perennial grasses and chickweed andpreemergence control of certain broadleaf weeds.

DosageKerb 3.3 SC may be applied at the rate of 2.5 to 5.0 pints of product (1 to 2 Ib active ingredient) per acrebroadcast application. The rate will depend on the weed species present. Follow the weed controlinstructions listed in the chart below:

Weeds Controlled

bluegrass, annualbrome, downy (cheatgrass)chickweedoat, wildsorrel, red (from seed)bentgrassbluegrass, Kentuckyfescue, tall3

orchardgrass3

quackgrassryegrass, perennialvelvetgrass3

Pints Kerb 3.3 SC Per Acre1


2.5

5.0



3 Kerb 3.3 SC at the rate of 5.0 pints of product per acre may only provide partial control to these weeds.

Crop ToleranceEstablished rhubarb plants, in a dormant growth condition, are tolerant to specified rates of Kerb 3.3 SC.Do not apply Kerb 3.3 SC to newly transplanted rhubarb or to rhubarb during the active growing stage.

Timing and ApplicationApply Kerb 3.3 SC in a single application during the fall or winter months as a broadcast surfaceapplication to dormant rhubarb. Optimum herbicidal activity occurs when applications are made after soiltemperatures drop to 55°F or less and are followed by rainfall or overhead irrigation. Applications mustbe made prior to soil freeze up and snow cover.

Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly with a low-pressure groundsprayer in 20 to 50 gallons of water per acre. ic l c " " « .

Rhubarb - Specific Use Restrictions L,. ^'"• Do not apply Kerb 3.3 SC to rhubarb within 38 days of harvest. c c 11 c t \• Use of Kerb 3.3 SC in rhubarb is restricted to Oregon and Washington only. \ ° <• 'c , c c• Do not apply more than 5.0 pints/acre (2 Ib active ingredient) Kerb 3.3 SC or make rnc.r.3 than-one1"

application per year. '\. >.L

Apple, Apricot, Cherry, Nectarine, Peach,Pear, Plum, Prune and Grape Plantings

H2B /Kerb 3.3 SC / MSTR / Notii / 04-18-13Page 26

Product InformationKerb 3.3 SC is a selective herbicide for use in directed spray applications for the control of winter annualand perennial grasses and certain broadleaf weeds in non-bearing and bearing apples, apricots, cherries,nectarines, peaches, pears, plums, prunes and grape plantings.

Weed ControlKerb 3.3 SC is effective at 2.5 to 9.5 pints of product (1 to 4 Ib active ingredient) per treated acre for thepreemergence and postemergence control of susceptible winter annual and perennial grasses andchickweed and for preemergence control only of other broadleaf weeds listed on this label. Refer to chartin dosage rate section below for specific weeds controlled.

Dosage and TimingKerb 3.3 SC may be applied in a single, directed application to labeled fruit trees and grape plantings atdosage rates of 2.5 to 9.5 pints of product (1 to 4 Ib active ingredient) per treated acre. Application ofKerb 3.3 SC must be in the fall, after the fruit is harvested, but prior to soil freeze-up.

The dosage rate required for effective weed control will depend on the weed species present and the soiltexture of the area being treated. Follow the specific rate instructions given in the chart below for the useof Kerb 3.3 SC in labeled fruit trees and grapes:

Weeds Controlled

bluegrass, annualbrome, downy (cheatgrass)chickweedgrain, volunteeroat, wildryegrass, Italiansorrel, red (from seed)bluegrass, Kentuckyfescue, tallorchardgrassquackgrassryegrass, perennial

Pints Kerb 3.3 SC Per AcreDependable Rainfall or

Overhead Irrigation

Soil Texture GrouCoarse

2.5

3.5-5.0

Medium3.5

5.0-7.0

P1

Fine5.0

7.0-9.5

Soil Texture Group:Coarse: sand, loamy sand, sandy loamMedium: loam, silt loam, silt, sandy clay loamFine: silty clay loam, clay loam, sandy clay, silty clay, clay.

Application , , , . < .Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly in 40 to 50 gallons of wator< c

per acre. Use a low pressure ground sprayer equipped with a breakaway boom and flat fan or off-center1

(OC) nozzles. Direct Kerb 3.3 SC to the soil and the base of trees and vines. < . ̂ ' <-c c c c c c '•

Note: Dosage instructions listed on this label are for surface broadcast application. Fo; bahd'ad ^ ( c ,

treatments, the amount of Kerb 3.3 SC used per acre should be reduced according to tiTojfollpwing" c c

formula: l ' ; ' • , c ,

Width (in inches)Row Width (in inches)

Rate per Amount Needed per Acrex Acre Broadcast = for Band Application

Kerb 3.3 SC may not be soil incorporated.

H2B /Kerb 3.3 SC / MSTR / Notin 04-18-13 'Page 27

Crop ToleranceWhen used according to label directions, established non-bearing or bearing fruit trees and grapes listedon this label are very tolerant to Kerb 3.3 SC. Kerb 3.3 SC may not be applied to seedling trees or vinesless than 1 year old or to fall transplanted stock transplanted less than 1 year or to spring transplantedstock transplanted less than 6 months.

Cultural ConsiderationsKerb 3.3 SC acts mainly through root absorption in sensitive weed species. Dependable rainfall oroverhead irrigation is essential following the application for effective weed control. Trash-free areascreate ideal conditions for rapid movement of Kerb 3.3 SC into the weed root zone following rain orirrigation. Clean cultivation before application is preferable but not necessary.

To obtain optimum weed control in areas not clean cultivated, the area to be treated must be free ofsurface litter (dead or decaying weeds, leaves, mowing clippings, etc.) If area to be treated is under amixed grass or weed sod, it must be mowed and the clippings removed.

Apple, Apricot, Cherry, Nectarine, Peach, Pear, Plum, Prune and Grape Plantings -Specific Use Restrictions• Do not feed or allow livestock to graze areas treated with Kerb 3.3 SC.• Do not apply more than 4 Ib/acre active ingredient (9.5 pints/acre of Kerb 3.3 SC) to labeled fruit trees

or grapes or make more than one application per year.

Winter Peas

Winter Annual Weed Control In Winter Peas (Idaho, Oregon and Washington Only)

Product InformationKerb 3.3 SC is a selective herbicide for the control of certain winter annual grasses and broadleaf weedsin winter peas (Pisum sativum var. arvense).

Grassesbarley, volunteerbrome, downyoat, volunteeroat, wildryegrass, Italianwheat, volunteer

Broadleaf Weedschickweed, commonchickweed, mouse-ear ,, c t

henbit11 Preemergence control only

i. i *- *-

Dosage c o c c c c <-Apply Kerb 3.3 SC in a single, broadcast application at the rate of 2.0 to 3.5 pints of produk (6.7|y-tp ']'.?>Ib active) per treated acre. For grass weeds greater than three inches in height use vte 'liioher rate.c c

i f. ( <- !-<. '. '-

Timing ' ' - ; l ' L l '"

Apply Kerb 3.3 SC from mid-fall to early winter (November to January) early postemerg'erice to the peas.Peas should be in the second node stage of growth (two to three inches in size) at time of application.' <

Application '' < j

H2B /Kerb 3.3 SC / MSTR / Notir/ 04-18-13r

Page 28

Mix the specified amount of Kerb 3.3 SC in clean water and apply uniformly with a ground sprayer in 20 to50 gallons of water per treated acre. Use a conventional herbicide sprayer equipped with flat fan nozzlesthat provide uniform spray distribution. Do not feed treated vines to livestock or allow animals to graze ontreated areas.

Winter Peas - Specific Use Restrictions• Do not feed treated vines to livestock or allow animals to graze on treated areas.• Do not apply more than 1.5 Ib/acre active ingredient (3.5 pints/acre Kerb 3.3 SC) or make more than

one application per year.

'Woody Ornamentals, Nursery Stock ofOrnamentals, Christmas Trees

Product InformationKerb 3.3 SC is a selective herbicide for fall applications to established woody ornamentals, nursery stockof ornamentals and Christmas trees for the control of winter annual and perennial grasses and certainbroadleaf weeds.

Crop ToleranceAt specified rates of Kerb 3.3 SC the following trees and shrubs are tolerant to topical applications madein the fall:

arborvitaeashazaleabarberrybasswoodbeechbirchboxwoodbradford pearcedarcotoneasterdogwoodDouglas-fireastern redbudelmeuonyrnusfir

firethornflowering cherryflowering crabappfeflowering quinceforsythiaginkgohawthornhemlockhollyhoney locustjuniperlilaclindenLondon planemagnoliamaplernock oranae

mountain ashmountain laureloakOhio buckeyepinepoplarprivetrhododendronspireasprucesweetgumsycamoretuliptreeviburnumwalnutwillowyew

Kerb 3.3 SC may be used on established trees and woody ornamentals. Kerb 3.3 SC may not be usedon seedling trees or shrubs less than one year old or to fall transplanted stock transplanted less than'or.eyear or to spring transplanted stock transplanted less than six months. l ' ' " __

L

Weed Control . t, t c c "Kerb 3.3 SC may be applied in fall applications at the rate of 2.5 to 5.0 pints of product (I'to: 2 Ib ajctive;ingredient) per broadcast acre for the preemergence and postemergence control of susceptible winter ('annual and perennial grasses and chickweed and for preemergence control only of othe"rcbrbadlee.f,weeds listed on this label. Refer to chart in Dosage and Timing section below for specific weeds J. ' < « . c

controlled. . , , I , . < / ' <

Dosage and Timing . ' ' > . < <Kerb 3.3 SC may be applied in a single, fall application, either directed or topically applied, to woody , ;ornamentals, nursery stock of ornamentals or Christmas trees at the rate of 2.5 to 5.0 pints of product (T

H2B /Kerb 3.3 SC / MSTR / Notify 04-18-13f

Page 29

to 2 Ib active ingredient) per broadcast acre. Apply Kerb 3.3 SC in the fall prior to leaf drop and soilfreeze-up. For control of winter annual or perennial grasses or chickweed, applications can be madeeither preemergence or postemergence to the weeds. For control of other labeled broadleaf weeds,preemergence applications must be used to achieve control.

The dosage rate required will depend on the weed species present in the area to be treated. Follow theweed control instructions given in the chart below:

Weeds Controlledbarley, foxtailbluegrass, annualbrome, downy (cheatgrass)chickweedgrain, volunteerryegrass, Italiansorrel, red (from seed)mustard, wildrocket, Londonshepherdspursebluegrass, Kentuckyorchardgrassquackgrassryegrass, perennial

Pints Kerb 3.3 SC Per AcreBroadcast Application

2.5

3.5

5.0

ApplicationMix the specified amount of Kerb 3.3 SC in clean water and apply uniformly in 20 to 50 gallons per acre.Use a low pressure ground sprayer equipped with flat fan nozzles spaced to provide uniform distribution.Dosages listed on this label are for surface broadcast application. For banded treatments down the row,reduce the amount of Kerb 3.3 SC used per acre according to the following formula:

Band Width (in inches) Rate perRow Width (in inches) x Acre Broadcast

Kerb 3.3 SC must not be soil incorporated.

Amount Needed per Acrefor Band Application

Note: Most ornamental turf grass species and ground covers are sensitive to Kerb 3.3 SC. Avoid contactof Kerb 3.3 SC with these plants from either direct application, spray drift or from applications to areasthat may drain onto established ornamental turf and ground cover.

Soil and Moisture RequirementsKerb 3.3 SC is most active in coarse to medium textured soils of low organic matter and is relativelyinactive in peat or muck soils or mineral soils high in organic matter content at rates specified in tfy? Jebel.Herbicidal activity is best in soils containing less than 4 percent organic matter. Use in soils of hi'gh,e;\u

organic matter content may result in inconsistent or incomplete weed control. 11 <. c. . i. <<- i.

Kerb 3.3 SC acts mainly through root absorption in sensitive weed species. Dependable rainfall or ^overhead irrigation is essential following application for effective weed control. ' c t L <. L

Woody Ornamentals, Nursery Stock of Ornamentals/ Christmas Trees - Specific list Restrictions• Apply Kerb 3.3 SC in the fall prior to soil freeze-up. '' J 1 1

1 l ''

• Do not soil incorporate Kerb 3.3 SC.• Do not harvest plants for food or feed for at least one year after treatment. 1 , , . « . I,• Do not apply more than 2 Ib/acre active ingredient (5.0 pints/acre Kerb 3.3 SC) or make more than one

application per year. .l <. •

H2B /Kerb 3.3 SC / MSTR / NotiT / 04-18-13Page 30

ATTENTION: This product contains propyzamide (pronamide) a chemical known to the State ofCalifornia to cause cancer.

Terms and Conditions of UseIf terms of the following Warranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies are notacceptable, return unopened package at once to the seller for a full refund of purchase price paid.Otherwise, use by the buyer or any other user constitutes acceptance of the terms under WarrantyDisclaimer, Inherent Risks of Use and Limitation of Remedies.

Warranty DisclaimerDow AgroSciences warrants that this product conforms to the chemical description on the label and isreasonably fit for the purposes stated on the label when used in strict accordance with the directions,subject to the inherent risks set forth below. To the extent permitted by law, Dow AgroSciences MAKESNO OTHER EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE OR ANY OTHER EXPRESS OR IMPLIED WARRANTY.

Inherent Risks of UseIt is impossible to eliminate all risks associated with use of this product. Plant injury, lack of performance,or other unintended consequences may result because of such factors as use of the product contrary tolabel instructions (including conditions noted on the label, such as unfavorable temperature, soilconditions, etc.), abnormal conditions (such as excessive rainfall, drought, tornadoes, hurricanes),presence of other materials, the manner of application, or other factors, all of which are beyond thecontrol of Dow AgroSciences or the seller. All such risks shall be assumed by buyer.

Limitation of RemediesTo the extent permitted by law, the exclusive remedy for losses or damages resulting from this product(including claims based on contract, negligence, strict liability, or other legal theories), shall be limited to,at Dow AgroSciences' election, one of the following:

1. Refund of purchase price paid by buyer or user for product bought, or2. Replacement of amount of product used

To the extent permitted by law, Dow AgroSciences shall not be liable for losses or damages resultingfrom handling or use of this product unless Dow AgroSciences is promptly notified of such loss ordamage in writing. To the extent permitted by law, in no case shall Dow AgroSciences be liable forconsequential or incidental damages or losses.

The terms of the Warranty Disclaimer, Inherent Risks of Use, and this Limitation of Remedies cannot bevaried by any written or verbal statements or agreements. No employee or sales agent of DowAgroSciences or the seller is authorized to vary or exceed the terms of the Warranty Disclaimer or thisc t

Limitation of Remedies in any manner.

trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow t ^ 11, t

EPA accepted 10/10/12 ^ L I

H2B/Kerb 3.3 SC / MSTR / Notitv 04-18-13Page 31

[Sub-Label &]

(Base label):


Kerb® SC T&OSpecialty Herbicide

For use on turf grown for sod, nonresidential sites, golf course, industrial andoffice building sites, stadium fields or professional athletic fields, woodyornamentals, nursery stock of ornamentals, and Christmas trees

Group 3 HERBICIDE


(1,1-dimethyl-2-propynyl) benzamide 35.6%Other Ingredients 64.4%Total .....100.0%



CAUTION





Discard clothing and other absorbent materials that have been drenched or heavily contarninated'wii^tl lisproduct's concentrate. Do not reuse them. Follow manufacturer's instructions for cleaning/'maintainingPPE. If no such instructions for washables exist, use detergent and hot water. Keep'arid wash P.PE ,separately from other laundry.

f. (, L C<

( < 1 (

H2B /Kerb 3.3 SC / MSTR / Notif /X/4-18-13Page 32





First AidIf in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contactlenses, if present, after the first 5 minutes, then continue rinsing eye. Call a Poison Control Center ordoctor for treatment advice.Note: Have the product container or label with you when calling a Poison Control Center or doctor orgoing for treatment. You may also contact 1-800-992-5994 for emergency medical treatment information.

Environmental HazardsDo not apply directly to water, to areas where surface water is present or to intertidal areas below themean high water mark. Do not contaminate water when cleaning equipment or disposing of equipmentwashwaters.


Nonrefillable rigid containers 5 gallons or less:Storage and Disposal

Do not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recycling ifavailable or puncture and dispose of in a sanitary landfill, or by incineration, or by other proceduresallowed by state and local authorities.Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank and drain for 10 seconds after theflow begins to drip. Fill the container 1/4 full with water and recap. Shake for 10 seconds. Pour riqsrait^,into application equipment or a mix tank or store rinsate for later use or disposal. Drain for 10 seconds''after the flow begins to drip. Repeat this procedure two more times. Pressure rinse as follows: Empty c

the remaining contents into application equipment or a mix tank and continue to drain for 10 seconos: afterthe flow begins to drip. Hold container upside down over application equipment or mix!.!ani'.cdr collect c

rinsate for later use or disposal. Insert pressure rinsing nozzle in the side of the container, and rinsp^ ^ <about 40 psi for at least 30 seconds. Drain for 10 seconds after the flow begins to drip.( *" i'' ^ < ] t " ^

Retillable containers larger than 5 gallons:Storage and Disposal

Do not contaminate water, food or feed by storage or disposal.

H2B /Kerb 3.3 SC / MSTR / Notit/ 04-18-13Page 33

Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.Container Handling: Refillable container. Refill this container with pesticide only. Do not reuse thiscontainer for any other purpose.Cleaning the container before final disposal is the responsibility of the person disposing of the container.Cleaning before refilling is the responsibility of the refiller. To clean the container before final disposal,empty the remaining contents from this container into application equipment or a mix tank. Fill thecontainer about 10% full with water. Agitate vigorously or recirculate water with the pump for twominutes. Pour or pump rinsate into application equipment or rinsate collection system. Repeat thisrinsing procedure two more times.

Nonrefillable rigid containers larger than 5 gallons:

Storage and DisposalDo not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility.Container Handling: Nonrefillable container. Do not reuse or refillthis container. Offer for recycling ifavailable or puncture and dispose of in a sanitary landfill, or by incineration, or by other proceduresallowed by state and local authorities.Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full withwater. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at leastone complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth severaltimes. Turn the container over onto its other end and tip it back and forth several times. Empty therinsate into application equipment or a mix tank or store rinsate for later use or disposal. Repeat thisprocedure two more times. Pressure rinse as follows: Empty the remaining contents into applicationequipment or a mix tank and continue to drain for 10 seconds after the flow begins to drip. Hold containerupside down over application equipment or mix tank or collect rinsate for later use or disposal. Insertpressure rinsing nozzle in the side of the container, and rinse at about 40 psi for at least 30 seconds.Drain for 10 seconds after the flow begins to drip.


Notice: Read the entire label. Use only according to label directions. Before using this product, r$Warranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies at end of label bookiet < Ifterms are unacceptable, return at once unopened.

In case of emergency endangering health or the environment involving this product, call clc-309-992-5984.c t:

Agricultural Chemical: Do not ship or store with food, feeds, drugs or clothing. L " { ' ' r ' [L C

EPA Reg. No. 62719-578 EPAjEs-tt


Net Contents

H2B /Kerb 3.3 SC / MSTR / Motif/ 04-18-13Page 34

(cover/shipping container):

Restricted Use PesticideBecause pronamide has produced tumors in laboratory animals, this product is for retail sale toand use only by Certified Applicators or persons under their direct supervision, and only for thoseuses covered by the Certified Applicator's certification. '

Kerb® SC T&OSpecialty Herbicide

For use on turf grown for sod, nonresidential sites, golf course, industrial andoffice building sites, stadium fields or professional athletic fields, woodyornamentals, nursery stock of ornamentals, and Christmas trees

Group .. 3 • -, HERBICIDE


(1,1-dimethyl-2-propynyl) benzamide 35.6%Other Ingredients 64.4%Total 100.0%



CAUTION



Notice: Read the entire label. Use only according to label directions. Before using this product, jsWarranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies at end of label booklet, Ifterms are unacceptable, return at once unopened. c < I...

I. C C

In case of emergency endangering health or the environment involving this product, call 1c-8QO-992-5,984.t

Agricultural Chemical: Do not ship or store with food, feeds, drugs or clothing.c

EPA Reg. No. 62719-578 EPrtcE:St.


Net Contents


(Page 1 through end):





Discard clothing and other absorbent materials that have been drenched or heavily contaminated with thisproduct's concentrate. Do not reuse them. Follow manufacturer's instructions for cleaning/ maintainingPPE. If no such instructions for washables exist, use detergent and hot water. Keep and wash PPEseparately from other laundry.





First AidIf in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contactc c

c

lenses, if present, after the first 5 minutes1 then continue rinsing eye. Call a Poison Control Center 'ofc 'doctor for treatment advice. "c c c

Note: Have the product container or label with you when calling a Poison Control Center or doctor~6rc

going for treatment. You may also contact 1-800-992-5994 for emergency medical tre¥tnrsrtt information.

Environmental Hazards ' u L' , < cDo not apply directly to water, to areas where surface water is present or to intertidal areaGcbelow the c-<.mean high water mark. Do not contaminate water when cleaning equipment or disposing of 'equipmentwashwaters. ' lm(

Directions for Use -[ t - L

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.Read all Directions for Use carefully before applying.

H2B /Kerb 3.3 SC / MSTR / Notif /V4-18-13Page 36

Do not apply this product in a way that will contact workers or other persons, either directly or throughdrift. Only protected handlers may be in the area during application. For any requirements specific toyour state or tribe, consult the agency responsible for pesticide regulation.

Agricultural Use RequirementsUse this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFRpart 170. This Standard contains requirements for the protection of agricultural workers on farms, forests,nurseries, and greenhouses, and handlers of agricultural pesticides. It contains requirements for training,decontamination, notification, and emergency assistance. It also contains specific instructions andexceptions pertaining to the statements on this label about personal protective equipment (PPE)andrestricted-entry interval. The requirements in this box only apply to uses of this product that are coveredby the Worker Protection Standard.

Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 24 hours.

PPE required for early entry to treated areas that is permitted under the Worker Protection Standard andthat involves contact with anything that has been treated, such as plants, soil or water, is:• Coveralls over short-sleeved shirt and short pants• Waterproof gloves• Chemical-resistant footwear plus socks• Chemical-resistant headgear for overhead exposure

Non-Agricultural Use RequirementsThe requirements in this box apply to uses of this product that are not within the scope of the WorkerProtection Standard for agricultural pesticides (40 CFR Part 170). The WPS applies when this product isused to produce agricultural plants on farms, forests, nurseries or greenhouses.

For all uses except those specified below, do not enter or allow others to enter until sprays have dried.When applied to stadium or professional athletic fields, water-in immediately after application or, do notenter ot allow others to enter treated area for 24-hours after application. If product is watered-in aftertreatment, do not enter or allow other persons to enter until area has dried.

Storage and DisposalDo.not contaminate water, food or feed by storage or disposal.Pesticide Storage: Store in a cool, dry place but not below 32°F (0°C). Do not remove package fromcontainer except for immediate use.Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at anapproved waste disposal facility. , < c c

c c c c

Nonrefillable containers 5 gallons or less: c L c c

Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recycling^available or puncture and dispose of in a sanitary landfill, or by incineration, or by otherprxpcadures c

allowed by state and local authorities. ^ < < / < ' ' < .Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple fih'se; as fohow's:Empty the remaining contents into application equipment or a mix tank and drain for 10 sedonds aiter theflow begins to drip. Fill the container 1/4 full with water and recap. Shake for 10 seconds!: cfi?our rihsateinto application equipment or a mix tank or store rinsate for later use or disposal: Draih'fbr'10 secpnds^after the flow begins to drip. Repeat this procedure two more times. Pressure rinse as follows: Empty--the remaining contents into application equipment or a mix tank and continue to drain for 10 seconds afterthe flow begins to drip. Hold container upside down over application equipment or mix tank or collecte t {rinsate for later use or disposal. Insert pressure rinsing nozzle in the side of the container, and rinse atabout 40 psi for at least 30 seconds. Drain for 10 seconds after the flow begins to drip.

Refutable containers larger than 5 gallons:

H2B /Kerb 3.3 SC / MSTR / Not'iv/ 04-18-13Page 37

Ml 1

Container Handling: Refillable container. Refill this container with pesticide only. Do not reuse thiscontainer for any other purpose.Cleaning the container before final disposal is the responsibility of the person disposing of the container.Cleaning before refilling is the responsibility of the refiller. To clean the container before final disposal,empty the remaining contents from this container into application equipment or a mix tank. Fill thecontainer about 10% full with water. Agitate vigorously or recirculate water with the pump for twominutes. Pour or pump rinsate into application equipment or rinsate collection system. Repeat thisrinsing procedure two more times.

Nonrefillable containers larger than 5 gallons:Container Handling: Nonrefillable container. Do not reuse or refill this container. Offer for recycling ifavailable or puncture and dispose of in a sanitary landfill, or by incineration, or by other proceduresallowed by state and local authorities.Triple rinse or pressure rinse container (or equivalent) promptly after emptying. Triple rinse as follows:Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full withwater. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at leastone complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth severaltimes. Turn the container over onto its other end and tip it back and forth several times. Empty therinsate into application equipment or a mix tank or store rinsate for later use or disposal. Repeat thisprocedure two more times. Pressure rinse as follows: Empty the remaining contents into applicationequipment or a mix tank and continue to drain for 10 seconds after the flow begins to drip. Hold containerupside down over application equipment or mix tank or collect rinsate for later use or disposal. Insertpressure rinsing nozzle in the side of the container, and rinse at about 40 psi for at least 30 seconds.Drain for 10 seconds after the flow begins to drip.

Product Information

Kerb® SC T&O specialty herbicide is effective for the control of a wide range of grasses and certainbroadleaf weeds. The product is a soil active herbicide with uptake by sensitive weeds occurring throughthe roots. Before using this herbicide for a specific crop use, study the following general use informationthat provides important instructions for the safe and effective application of the product.

Use Restrictions:

Hand-spray applications of pronamide are only permitted to ornamentals and nursery stocks.

This product may only be used on turf grown for sod or on nonresidential sites including golfcourse, industrial and office building sites, stadium fields or professional athletic fields. This ̂ ',.'-product may also be used on non-residential woody ornamentals, nursery stock of ornamentals,t,and Christmas trees. , ,c,,

i. c i. i- u t, v

Chemigation: Do not apply this product through any type of irrigation system unless specirieH by otoer clabeling. t <. <. c. t t I " <_ t

c

1C i t t .

L C C C C (, <- t

Spray Drift Management (Aerial Application) ,. ' . . , ' 'c t.

Avoiding spray drift at the application site is the responsibility of the applicator. The potential for spray"c L

drift is determined by the interaction of many equipment-and-weather-related factors. The applicator-and;the grower are responsible for considering all these factors when making decisions.

The following drift management requirements must be followed to avoid off-target drift movement fromaerial applications to agricultural field crops. These requirements do not apply to forestry applications,public health uses or to applications using dry formulations.

H2B /Kerb 3.3 SC / MSTR / Norn / 04-18-13Page 38

1. The distance of the outer most nozzles on the boom must not exceed % the length of the wingspan orrotor.

2. Nozzles must always point backward parallel with the air stream and never be pointed downwardsmore than 45 degrees.

Where certain states have more stringent regulations, they must be observed.

The applicator must be familiar with and take into account the information covered in the following AerialDrift Reduction Advisory Information section.

Aerial Spray Drift Advisory Information

This section is advisory in nature and does not supersede mandatory label requirements..

The most effective way to reduce drift potential is to apply large droplets. The best drift managementstrategy is to apply the largest droplets that provide sufficient coverage and control. Applying largerdroplets reduces drift potential, but will not prevent drift if applications are made improperly, or underunfavorable environmental conditions (see Wind, Temperature and Humidity, and Temperature Inversionsection of this label).

Controlling Droplet Size:• Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher

rated flows produce larger droplets.• Pressure - Do not exceed the nozzle manufacturer's specified pressures. Use the lower spray

pressures specified for the nozzle. Higher pressure reduces droplet size and does not improvecanopy penetration. When higher flow rates are needed, use higher flow rate nozzles instead ofincreasing pressure.

• Number of nozzles - Use the minimum number of nozzles that provide uniform coverage.• Nozzle Orientation- Orienting nozzles so that the spray is released backwards, parallel to the

airstream will produce larger droplets than other orientations. Significant deflection from thehorizontal will reduce droplet size and increase drift potential.

• Nozzle Type - Use a nozzle type that is designed for the intended application. With most nozzletypes, narrower spray angles produce larger droplets. Consider using low-drift nozzles. Solid streamnozzles oriented straight back produce larger droplets and lower drift than other nozzle types.

Boom Length: For some use patterns, reducing the effective boom length to less than % of the wingspanor rotor length may further reduce drift without reducing swath width.

c c c rc c

Application Height: Applications must not be made at a height greater than 10 feet above the top bi 'ihelargest plants unless a greater height is required for aircraft safety. Making applications at the lowest'c

height that is safe reduces exposure of droplets to evaporation and wind. c c i c

». t c c e c ':C (, C

Swath Adjustment: When applications are made with a cross-wind, the swath will be displaced <''' >•• t \r-downwind. Therefore, on the up and downwind edges of the field, the applicator must compensate forthis displacement by adjusting the path of the aircraft upwind. Swath adjustment distance^must increase,with increasing drift potential (higher wind, smaller drops, etc.).

Wind: Drift potential is lowest between wind speeds of 2-10 mph. However, many factors, including/ ^'droplet size and equipment type determine drift potential at any given speed. Application must beeavoided below 2 mph due to variable wind direction and high inversion potential. Note: Local terrain bahinfluence wind patterns. Every applicator must be familiar with local wind patterns and how they affectspray drift.

r rH2B /Kerb 3.3 SC / MSTR / Notin 04-18-13

Page 39

Temperature and Humidity: When making applications in low relative humidity, set up equipment toproduce larger droplets to compensate for evaporation. Droplet evaporation is most severe whenconditions are both hot and dry.

Temperature Inversions: Applications must not occur during a temperature inversion, because driftpotential is high. Temperature inversions restrict vertical air mixing, which causes small suspendeddroplets to remain in a concentrated cloud. This cloud can move in unpredictable directions due to thelight variable winds common during inversions. Temperature inversions are characterized by increasingtemperatures with altitude and are common on nights with limited cloud cover and light to no wind. Theybegin to form as the sun sets and often continue into the morning. The presence of inversion conditionscan be indicated by ground fog. However, if fog is not present, the movement of smoke from a groundsource or an aircraft smoke generator can also identify inversion conditions. Smoke that layers andmoves laterally in a concentrated cloud (under low wind conditions) indicates an inversion, while smokethat moves upwards and rapidly dissipates indicates good vertical air mixing.

Sensitive Areas: The pesticide must only be applied when the potential for drift to adjacent sensitiveareas (e.g., residential areas, bodies of water, known habitat for threatened or endangered species, non-target crops) is minimal (e.g., when wind is blowing away from the sensitive areas).

Resistance Management

Kerb 3.3 SC is a Group 3 herbicide. Any weed population may contain or develop plants naturallyresistant to this product and other Group 3 herbicides. The resistant biotypes may dominate the weedpopulation if these herbicides are used repeatedly in the same field. Kerb 3.3 SC will not control knownGroup 3 resistant biotypes or labeled weeds. Other resistance mechanisms that are not linked to site ofaction, but specific for individual chemicals, such as enhanced metabolism, may also exist. Appropriateresistance management strategies should be followed.

To delay herbicide resistance:• Where possible, rotate the use of Kerb 3.3 SC or other Group 3 herbicides with different herbicide

groups that control the same weeds in a field.• For best resistance management stewardship, avoid use more than once per season and use

Kerb 3.3 SC in programs with other herbicides with different modes of action.• Where possible, rotate the use of Kerb 3.3 SC or other Group 3 herbicides with different herbicide

groups that control the same weeds in a field.• Use tank mixtures with herbicides from a different group when such use is permitted.• Herbicide use should be based upon an IPM program that includes scouting, historical

information related to herbicide use and crop rotation, and considers tillage (or other mechanjc.al),cultural, biological and other chemical control practices. c

t,_ c c c

• Monitor treated weed populations for resistance development. c c c t

• Prevent movement of resistance weed seeds to other fields by cleaning harvesting and til'egcequipment and planting clean seed. . c c <. c c c c

• Contact your local extension specialist or certified crop advisers for any additional pesticide t •- L

resistance management and/or integrated weed management requirements fov;specific clops 'andweed biotypes. '' [c

c " tC, C C C <- t- C <-

Weed Spectrum c t <, t tI L C C C C

Kerb SC T&O may be used for both preemergence and early postemergence control of winter annual andperennial grasses and chickweed and for preemergence control only of certain other broadleaf weetfs.,'and certain other grasses listed.

Weeds Controlled Both Preemergence and Early Postemergencebarley, foxtail Hordeum jubatumbarley, volunteer Hordeum vulgare


bentgrass Agrostis speciesbluegrass, annual Poa annuabluegrass, bulbous Poa bulbosabluegrass, kentucky Poa pratensisbrome, downy (cheatgrass) Bromus tectorumchickweed, common Stellaria mediachickweed, mouse-ear Cerastium vulgatumfescue, tall Festuca arundinaceaegoatgrass, jointed Aegilops cylindricaoat, volunteer Avena salivaoat, wild Avena fatuaorchardgrass Dactylis glomerataquackgrass Agropyron repensrye, volunteer Secale cerealeryegrass, Italian Lolium multiflorumryegrass, perennial Lolium perennevelvetgrass Holcus lanatuswheat, volunteer Triticum aestivum

Weeds Controlled Only Preemergencebarnyardgrass Echinochloa crus-gailicanarygrass Phalaris canahensiscarpetweed Mollugo verticillatacrabgrass, large Digitaria sanguinalisdodder, field Cuscuta campestrisfoxtail, yellow Setaria lutescensgoosefoot, nettleleaf Chenopodium muralegoosegrass Eleusine indicahenbit Lamium amplexicauleknotweed, prostrate Polygonum avicularelambsquarters, common Chenopodium albumlovegrass Eragrostis diffusamallow, little (cheeseweed) Malva parvifloramorningglory, annual Ipomoea purpureamustard, wild Brassica kabernettle, burning Urtica urensnightshade, black Solanum nigrumnightshade, hairy Solanum sarrachoidespanicum, fall Panicum dichotomiflorumpurslane, common Portulaca oleracearadish, wild Raphanus sativusrocket, London Sisymbrium irioshepherdspurse Capsella bursa-pastorissmartweed, pale Polygonum lapathifoliumsorrel, red (from seed) Rumex acetosellatomato, volunteer Solanum esculentum '' c' c c c

C C C C C L C t.t C

Note: The weed species controlled by Kerb SC T&O are dependent on the rate used,' specific crppculture involved, and the associated conditions of temperature, soil type and moisture availability/Referto specific crop use directions for weed species controlled.

i. «. c (,

DosageThe rate of Kerb SC T&O required will vary depending on the crop culture involved and weed species tobe controlled. See specific crop use directions for all dosage instructions. All dosage instructions listed inthis label are in terms of pounds of product or active ingredient per broadcast acre. For banded

MM 1*50

c c c ec

I- C C C

C C (. Cc

, (.. c (;

H2B /Kerb 3.3 SC / MSTR / Notit / 04-18-13Page 41

application, the amount of Kerb SC T&O used per acre must be reduced according to the followingformula:

Band Width (in inches)Row Width (in inches)

Rate per Amount Needed per AcreAcre Broadcast = for Band Application

Timing and ApplicationUnless specific directions are given under the crop to be treated, Kerb SC T&O must be applied in the fallor early winter, when temperatures do not exceed 55°F, but prior to freeze-up. Best weed controlresults occur when Kerb SC T&O is applied preemergence to the weeds and when application is followedby rainfall or irrigation to move the product into the root zone of the germinating weeds.

Mix Kerb SC T&O thoroughly in clean water at the required concentration and apply uniformly as a spray.For ground application, use a conventional low-pressure herbicide sprayer equipped with flat fan nozzlesspaced and calibrated to uniformly deliver 20 to 50 gallons of spray per acre. For aerial applicationsapply in a coarse droplet spray at 5 to 10 gallons per acre. Accurately calibrate spray equipment prior toeach use.

Compatibility with Other PesticidesKerb SC T&O is compatible with most commonly used agricultural pesticides, crop oil concentrate andadjuvants. When preparing tank mixes, user should consult spray compatibility charts or StateCooperative Extension Service Specialists prior to actual use.

Effect of Soil Type, Moisture and TemperatureKerb SC T&O is most active in coarse to medium textured soils of low organic matter and relativelyinactive in peat or muck soils or mineral soils high in organic matter content at rates specified in this label.Herbicidal activity is best in soils containing less than 4 percent organic matter. Use in soils with higherorganic matter may result in inconsistent or incomplete weed control.

The herbicidal activity of Kerb SC T&O is mainly through root absorption in sensitive weed species. Rain,melting snow or irrigation is essential following treatment to move Kerb SC T&O into the root zone ofgerminating weeds.

Under field conditions, Kerb SC T&O will remain relatively stable with little loss of herbicidal activity whensoil temperatures are less than 55°°F. As soil temperatures increase, degradation of the active ingredienttakes place. Kerb SC T&O may degrade rather quickly if left exposed on the soil surface in warmweather. If Kerb SC T&O is applied when air temperatures exceed 85°F, the treatment must be soilincorporated to a shallow depth (top two to three inches) or watered into the soil as soon as possible? <-

( . L C C

Cultural Considerations , C C L C

For best results apply Kerb SC T&O to a trash-free soil surface. Clean cultivation before application1''ispreferable, but not necessary. To obtain optimum weed control in areas not clean cuitivatecJ, the area tobe treated must be free of surface litter (dead or decaying crop and weed debris, mowing clippings', otc/).Trash-free areas create ideal conditions for rapid movement of Kerb SC T&O into thecwbe<£root zone' \following rain or irrigation.

Rotation Crop Planting Information >Follow the directions given below when rotation crops will be planted to areas previously treated with'Kerb SC T&O: / (

Waiting Period in Days before Planting the Crops Indicated (1):Amount of

Kerb SC T&OApplied

(pint/Acre)

Root andTuber

Vegetables

LegumeVegetablesand Cotton

Brassica LeafyVegetables,Cucurbits,Fruiting

LeafyVegetables

(exceptBrassica

CerealGrains

H2B /Kerb 3.3 SC / MSTR7 Notir/ 04-18-13r

Page 42

^.252.53.55.0

90909090

9090120•\50

Vegetables andBulb Vegetables

90120180210

Vegetables),Crop Group

4(2)30303030

365365365365

(1) There are no plant back restrictions for Kerb SC T&O when rotating to artichokes, grapes, berry fruits,pome fruits or stone fruits.

(2) Crop Group 4 as defined under 40CFR 180.41.

Whether Kerb SC T&O is bed-topped, banded or broadcast, the beds must be knocked down and thefield cross-disced before rotation crops other than artichokes, head lettuce, endive, radicchio or escaroleare planted.

Where the Kerb SC T&O treatment is to be followed by a rotation crop within 180 days of application,bed-topped or banded applications are suggested.

Turf Grown for Sod

This product may only be used on turf grown for sod or on nonresidential sites including golfcourse, industrial and office building sites, stadium fields or professional athletic fields. Thisproduct may also be used on non-residential woody ornamentals, nursery stock of ornamentals,and Christmas trees.

Product InformationKerb SC T&O is a selective herbicide for the preemergence and postemergence control of annualbluegrass (Poa annua) from warm season grasses and the removal of perennial rye grass (Loliumperenne) from warm season during spring transition. Warm season grasses include ornamentalbermudagrass (Cynodon dactylon), Zoysiagrass, St. Augustinegrass and Centipedegrass.

Annual Bluegrass (Poa Annua) ControlKerb SC T&O will control annual bluegrass from pre-germination and seedling stages through tillering,heading and seed formation. Kerb SC T&O acts slowly on seedling to mature annual bluegrass.Following application of Kerb SC T&O annual bluegrass may first become dark green and then graduallyturn yellow and die over a 3- to 5-week period. <•< <• <

For effective control of annual bluegrass in sod, moisture is necessary to move Kerb SC T&O in the J^Te'e'droot zone. Refer to the Moisture Requirements section of this label for details. ' ' ' c

C C C L i. t l-C C, C

Dosage and Timing c c I \ c\For annual bluegrass control Kerb SC T&O is applied at the rate of 1.25 to 3.5 pints of pr66t:ct'(O.fe to'l'.SIb active ingredient) per acre broadcast application. The dosage rate required is dependent on the growthstage of annual bluegrass at time of application. Follow the dosage rate and timing instructions given^below:

Annual BluegrassGrowth Stage

Preemergence or early postemergencePostemergence - early tillering to headingPostemergence - seed forming stages

Kerb SC T&O pt/Acre1

Broadcast Application1.25-2.5"2.0-2.52.5-3.5

One acre equals 43,560 sq. ft.

H2B /Kerb 3.3 SC / MSTR / Notir i 04-18-13Page 43

2 Use the higher rate when longer preemergence residual control is desired.

Removal of Perennial Rye Grass from Warm Season GrassesKerb SC T&O will remove postemergent perennial rye grass from warm season grasses during the springto control the transition from cool season overseed to warm season grasses. Kerb SC T&O works slowlyto control mature perennial rye grass. After an application of Kerb SC T&O, perennial rye grass willgradually die over a 4- to 6-week period. The length of this transition is dependent upon environmentalfactors such as temperature, rainfall and mowing height of the turf.

Dosage and TimingFor removal of perennial rye grass from warm season grasses, Kerb SC T&O may be applied at a rate of•1.25 to 2.5 pints of product (0.5 to 1 Ib active ingredient) per broadcast acre. It is best to apply Kerb SCT&O to warm season grasses at 50% greenup. Application of Kerb SC T&O to dormant warm seasongrasses can slow greenup.

ApplicationMix the specified amount of Kerb SC T&O in clean water and apply uniformly with a low pressure groundsprayer in 20 to 50 gallons of water per acre or 0.5 to 1 gallon of water per 1000 sq ft. The sprayershould be equipped with flat fan nozzles, spaced to provide uniform distribution without skips or excessiveoverlapping of spray patterns.

Important Note: Avoid spraying on fairways, hillsides, or approaches that may drain ontobentgrass greens or to areas overseeded with sensitive cool season grasses. Do not make anapplication of a wetting agent for the purpose of frost protection or soil penetration to greens or tees 14days prior to or after a Kerb SC T&O application as injury may result.

Moisture RequirementsKerb SC T&O acts mainly through root absorption in sensitive weed species. If no rainfall occurs within aday or so of the application, a light overhead irrigation must be made to move the chemical into the weedroot zone. Avoid heavy irrigations of more than 1 inch to reduce the possibility of excess washing orleaching of the chemical from the area of application.

Kerb Deactivation for OverseedingWhere it is desirable to reseed sooner than 90 days following the application of Kerb SC T&O, anapplication of an activated charcoal such as Gro-Safe, is needed. Apply the activated charcoal at the rateof 10 Ib per 1000 sq ft. Allow at least 1.4 days between the application of Kerb SC T&O and theapplication of charcoal for control of emerged annual bluegrass. Reseed no sooner than 7 days followingcharcoal application. c ' : t < ( c

<_ c c t

Turf Grown for Sod - Specific Use Restrictions ' L ' ~ ( '• This product may be used on non-residential seeded, sodded, or sprigged turf that is well establisHed.

Use of this product on turf that has been weakened by weather-, pest-, disease- cHemfca!-, ormechanical-related stress may increase the chances of turf injury. I c c > 11 T c

t'c

• This product must only be applied to turf areas that are composed of the following turtqrjass species:• Bermudagrass (Cynodon dactylon) ^KK i \L'• Centipedegrass (Eremochloa ophiuroides) t1 £ t c

c <• St. Augustinegrass (Stenotaphrum secundatum) ,. t

• Zoysiagrass (Zoysia japonica) ^<.<.^• Avoid spraying on hill sides, fairways, or approaches that may drain onto bentgrass greens or tptareas

overseeded with sensitive cool season grasses. Do not make an application of a wetting agent for'thbpurpose of frost protection or soil penetration to greens or tees 14 days prior to or after a Kerb SCT&O application as injury may result.

• Do not apply Kerb SC T&O herbicide to areas that are to be overseeded with susceptible cool seasongrasses within 90 days of treatment unless deactivation is planned.

H2B /Kerb 3.3 SC / MSTR / Notif K/4-18-13Page 44

Do not apply Kerb SC T&O to dichondra, perennial bluegrass, annual and perennial ryegrasses,fescues and bentgrasses.Do not graze treated areas and do not feed clippings to livestock.Do not apply more than 1.5 Ib/acre active ingredient (3.5 pt/acre of Kerb SC T&O) or make more thanone application of Kerb SC T&O per crop season.

Woody Ornamentals, Nursery Stock ofOrnamentals, Christmas Trees

Product InformationKerb SC T&O is a selective herbicide for fall applications to established, non-residential woodyornamentals, nursery stock of ornamentals and Christmas trees for the control of winter annual andperennial grasses and certain broadleaf weeds.

Crop ToleranceAt specified rates of Kerb SC T&O the following trees and shrubs are tolerant to topical applications madein the fall:

arborvitaeashazaleabarberrybasswoodbeechbirchboxwoodbradford pearcedarcotoneasterdogwooddouglas fireastern redbudelmeuonymusfir

firethornflowering cherryflowering crabappleflowering quinceforsythiaginkgohawthornhemlockhollyhoney locustjuniperlilaclindenLondon planemagnoliamaplemock orange

mountain ashmountain laureloakOhio buckeyepinepoplarprivetrhododendronspireasprucesweetgumsycamoretuliptreeviburnumwalnutwillowyew

Kerb SC T&O may be used on established trees and woody ornamentals. Kerb SC T&O may not beused on seedling trees or shrubs less than one year old or to fall transplanted stock transplanted lessc c

c

than one year or to spring transplanted stock transplanted less than six months. "c l';

<_

Weed Control c, L c. < IKerb SC T&O may be applied in fall applications at the rate of 2.5 to 5.0 pints of products/to 2 Ib aptiveingredient) per broadcast acre for the preemergence and postemergence control of susceptible winter,, c

annual and perennial grasses and chickweed and for preemergence control only of other ibroadleaf t (

weeds listed on this label. Refer to chart in Dosage and Timing section below for speci?jotv,<eeds [ ' c <L

controlled. t,!'. c t c <.

c t

Dosage and Timing C . . . . C C LKerb SC T&O may be applied in a single, fall application, either directed or topically applied, to wopdyr j-ornamentals, nursery stock of ornamentals or Christmas trees at the rate of 2.5 to 5.0 pints of product (<J<-to 2 Ib active ingredient) per broadcast acre. Apply Kerb SC T&O in the fall prior to leaf drop and soilfreeze-up. For control of winter annual or perennial grasses or chickweed, applications can be madeeither preemergence or postemergence to the weeds. For control of other labeled broadleaf weeds,preemergence applications must be used to achieve control.


The dosage rate required will depend on the weed species present in the area to be treated. Follow theweed control instructions given in the chart below:

Weeds Controlledbarley, foxtailbluegrass, annualbrome, downy (cheatgrass)chickweedgrain, volunteerryegrass, Italiansorrel, red (from seed)mustard, wildrocket, Londonshepherdspursebluegrass, Kentuckyorchardgrassquackgrassryegrass, perennial

Pints Kerb SC T&O Per AcreBroadcast Application

2.5

3.5

5.0

ApplicationMix the specified amount of Kerb SC T&O in clean water and apply uniformly in 20 to 50 gallons per acre.Use a low pressure ground sprayer equipped with flat fan nozzles spaced to provide uniform distribution.Dosages listed on this label are for surface broadcast application. For banded treatments down the row,reduce the amount of Kerb SC T&O used per acre according to the following formula:

Band Width (in inches)Row Width (in inches)

Rate per , Amount Needed per AcreAcre Broadcast = for Band Application

Kerb SC T&O must not be soil incorporated.

Note: Most ornamental turf grass species and ground covers are sensitive to Kerb SC T&O. Avoidcontact of Kerb SC T&O with these plants from either direct application, spray drift or from applications toareas that may drain onto established ornamental turf and ground cover.

Soil and Moisture RequirementsKerb SC T&O is most active in coarse to medium textured soils of low organic matter and is relativelyinactive in peat or muck soils or mineral soils high in organic matter content at rates specified in thisjabel.Herbicidal activity is best in soils containing less than 4 percent organic matter. Use in soils of higne/c c°organic matter content may result in inconsistent or incomplete weed control. , c c c

cC C <• 1

Kerb SC T&O acts mainly through root absorption in sensitive weed species. DepenofsblScrainfall or <•-overhead irrigation is essential following application for effective weed control. I ': I <: c <

Woody Ornamentals, Nursery Stock of Ornamentals/ Christmas Trees - Specific Uss Restrictions• Apply Kerb SC T&O in the fall prior to soil freeze-up. < <-< <• <- c I \<."« Do not soil incorporate Kerb SC T&O. '' '"c '• Do not harvest plants for food or feed for at least one year after treatment. ,c c , _ , ̂ ,,• Do not apply more than 2 Ib/acre active ingredient (5.0 pints/acre Kerb SC T&O) or make more than

one application per year. t" t '. i ' t <-

ATTENTION: This product contains propyzamide (pronamide) a chemical known to the State ofCalifornia to cause cancer.

Terms and Conditions of Use

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H2B /Kerb 3.3 SC / MSTR / Notu / 04-18-13Page 46

If terms of the following Warranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies are notacceptable, return unopened package at once to the seller for a full refund of purchase price paid.Otherwise, use by the buyer or any other user constitutes acceptance of the terms under WarrantyDisclaimer, Inherent Risks of Use and Limitation of Remedies..

Warranty DisclaimerDow AgroSciences warrants that this product conforms to the chemical description on the label and isreasonably fit for the purposes stated on the label when used in strict accordance with the directions,subject to the inherent risks set forth below. To the extent permitted by law, Dow AgroSciences MAKESNO OTHER EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE OR ANY OTHER EXPRESS OR IMPLIED WARRANTY.

inherent Risks of UseIt is impossible to eliminate all risks associated with use of this product. Plant injury, lack of performance,or other unintended consequences may result because of such factors as use of the product contrary tolabel instructions (including conditions noted on the label, such as unfavorable temperature, soilconditions, etc.), abnormal conditions (such as excessive rainfall, drought, tornadoes, hurricanes),presence of other materials, the manner of application, or other factors, all of which are beyond thecontrol of Dow AgroSciences or the seller. All such risks shall be assumed by buyer.

Limitation of RemediesTo the extent permitted by law, the exclusive remedy for losses or damages resulting from this product(including claims based on contract, negligence, strict liability, or other legal theories), shall be limited to,at Dow AgroSciences' election, one of the following:

1. Refund of purchase price paid by buyer or user for product bought, or2. Replacement of amount of product used

To the extent permitted by law, Dow AgroSciences shall not be liable for losses or damages resultingfrom handling or use of this product unless Dow AgroSciences is promptly notified of such loss ordamage in writing. To the extent permitted by law, in no case shall Dow AgroSciences be liable forconsequential or incidental damages or losses.

The terms of the Warranty Disclaimer, Inherent Risks of Use, and this Limitation of Remedies cannot bevaried by any written or verbal statements or agreements. No employee or sales agent of DowAgroSciences or the seller is authorized to vary or exceed the terms of the Warranty Disclaimer or thisLimitation of Remedies in any manner. t c (c

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^Trademark of Dow AgroSciences LLC t,.,. L

EPA accepted 10/10/1.2 c c [ ,

united states environmental protection agency …may 15, 2013 · the agency is in receipt of your...

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