pear pest managament guide

7/31/2019 Pear Pest Managament Guide

1/18

Use only one material except where a combination is indicated. Follow label precautions when tank-mixing oils, ungicides, andinsecticides. Materials are not listed in order o preerence.

2012 Pear Pest Management Guide or the Willamette Valley EM 8420 page 1

Pear2012 Pest Management Guide or the Willamette Valley

Jef Olsen, Jay W. Pscheidt, and Ed Peachey

E M 8420 Revised Feb ru ary 2012

Te chemicals, ormulations, and rates listedor insect, mite, and disease control are among thebest recommendations based on label directions,research, and orchard use experience. Only a thor-

ough knowledge o the orchard, its variety, tree sizeand density, canopy characteristics, pest complex,and past pest problems will enable you to correctlyselect chemicals, rates, amount o water used peracre, and method o application or optimum pest

control. Occasionally, dierent ormulations o a

product or like ormulations containing a dierentamount o active ingredient also are registered andeective or use on the pests listed. Tese productsalso may be used; we do not intend to discriminateagainst them. You may wish to consult their labels

and determine whether their use coners advantagesover the products listed in this guide.

Always reer to the pesticide label or use instruc-tions. It is the legal document regarding use patterns.wo questions requently are asked about the

chemical control o insects and diseases: How muchchemical do I use per acre? and What is the leastamount o water I need per acre to apply in my con-centrate sprayer? Notice that the schedule belowsuggests an amount o ormulated product (notactive ingredient) to use per acre. Tis amount is

based on a typical middle age and density orchardwith moderate pest pressure. Common sense indi-cates that less material may be needed (than thatgiven) or - to 4-year-old orchards. Conversely,more chemical (within label limits) may be requiredor large, mature trees experiencing heavy pest pres-

sure rom multiple pests.

Many insecticide labels today indicate the mini-mum amount o water needed per acre to applyconcentrate sprays o insecticides, as well as how tocalculate the amount o chemical needed per acre

in a concentrate sprayer. CHECK LABEL BEFORESPRAYING! Some label directions indicate diluteapplications only, such as the dimethoate labels orcherry ruit y control.

Also:

. Make sure any tank-mixes o pesticides arecompatible. For example, the elevated pH osome boron spray solutions weakens manyinsecticides. Boron also is not compatible with

water-soluble packets.. Use adjuvants and spreader stickers with

caution.3. Heavy, brie rain or extended rainall

(0.75 inch or more than 4 hours) can removepesticides rom ruit and oliage. Reapplication

may be necessary (within label limits).

Important inormation. Be aware o worker protection standards

(WPS). All new pesticide labels will provideorchard reentry intervals and personal protec-tion equipment inormation.

. Diazinon is now classied as a restricted usepesticide due to bird toxicity. Maximum per-

acre application rates have been reduced to4 lb 50W, and the preharvest interval extendedto days.

3. Agri-Mek 0.5EC is registered on pears tocontrol pear psylla and mites.

4. Mitac has been canceled or mites.


2/18



Illustration courtesy o Washington State University Extension.

StagesDormant Season (Stage 0)Delayed Dormant (Stages )ight Cluster Bud or Prepink (Stage 3)Pink or Preblossom (Stages 46)

Not shown

Calyx; First Cover Spray; Second Cover Spray;Tird Cover Spray; Preharvest; Postharvest

Pear Pest Control RecommendationsUse only one material except where a combination is indicated. Follow label precautions when tank-mixing oils, ungicides,

and insecticides. Materials are not listed in order o preerence.

Dormant (Stage 0)

Pest or disease/Material

Amount oproduct per acre Comments/Reentry interval/Preharvest interval (PHI)

Pear psylla (adults and eggs), scaleNote: Apply just prior to egg deposition. Torough coverage is important.

horticultural mineral oil(HMO)

46 gal Te oil spray alone repels adult psylla and inhibits egg laying.

HMO + one o theollowing:

46 gal Te oil + synthetic pyrethroids kills adult psylla.

Asana XL 09 oz

Danitol .4EC 6.33 oz Do not apply more than 4.66 oz/A per season.Pounce 3.EC 86 oz

Surround See labels. Apply in 00 gal water at the beginning o pear psylla egg laying. Maintaincoverage until bloom with additional applications to prevent egg laying.0-day PHI.

Warrior II .3.5 oz 21-day PHI.

Pear rust mite, pear lea blister mite

Note: Apply beore bud swell i pear rust mite has been a problem in previous years.


owable sulur (6 lb ai/gal) gal

lime sulur 0 gal

wettable sulur (80%) 60 lb


3/18



Delayed Dormant (Stages 1 and 2apply when buds are swelling but beore bud scales drop to minimize injury)

Pest or disease/

Material

Amount o

product per acre Comments/Reentry interval/Preharvest interval (PHI)

Mites

lime sulur solution(Ca polysulde 9%) +

57 gal


6 gal

Pear psylla adults, European red mite, San Jose scale, European ruit scale, lygus bug


46 gal I scale is a problem, increase gallonage to 500 gpa. Calibrate to dischargetwo-thirds o volume out o top one-third o sprayer.

Asana XL 9.69. oz Very toxic to bees and sh.

Battalion 74. oz 21-day PHI.

Pounce 3.EC 86 oz Very toxic to bees and sh.

Esteem 35WP 45 oz Limited to applications per season. 45-day PHI.


Scales, lygus bug, grape mealybug, stink bug, mite eggs


46 gal Te 2:1 calibration should be used or all sprayers and all applications.

diazinon 50WP 4 lb Limited to application per season.

Lorsban 4E qt

Pseudomonas (see ootnote 6, page 12)

Copper-Count-N 8 qt -hour reentry.

Cuprox MZ 4.7 lb 4-hour reentry.

Kocide 3000 5.57 lb Copper may not be compatible with other spray materials. Do not attemptto mix it with other ungicides or insecticides. 48-hour reentry.

ManKocide 6 lb 4-hour reentry.

Nu-Cop 50DF 6 lb 4-hour reentry.


4/18



ight Cluster Bud (aer scales drop) or Prepink (Stage 3)

Pest or disease/

Material

Amount o


Scab (see ootnote 9, page 12)

Adament 50WG 45 oz Group 3 + ungicide. Eects on shape have not been studied. -hourreentry. 75-day PHI.

Flint 50WG .5 oz Rotate with other ungicides. Do not make more than consecutiveapplications. -hour reentry. 14-day PHI.

Inspire Super 8.5 oz Group 3 + 9 ungicide. -hour reentry. 14-day PHI.

mancozeb 3 or 6 lb Do not use the 6 lb/A rate beyond bloom. 4-hour reentry.

Procure 86 oz -hour reentry. 14-day PHI.

Sovran 46.4 oz See ootnote 8, page . Rotate with other ungicides. Do not make morethan consecutive applications. -hour reentry. 30-day PHI.

Sulorix qt/00 gal water See ootnote 5, page .

Syllit 65WP .53 lb Mix with another ungicide. See ootnote , page . 48-hour reentry.7-day PHI.

Ziram 76DF 68 lb 48-hour reentry. 5-day PHI.Rust mite

endosulan 50WP 34 lb 20-day PHI. Endosulan use will be canceled on pears on July 31, 2013.

Pear psylla adultsNote: All o the products listed below are detrimental to predatory mites with this timing.

Asana XL 9.69. oz Do not exceed 0.375 lb ai/A per season.

Pounce 3.EC 6 oz Do not exceed applications prebloom.


Trips, lygus, stink bugs

endosulan 50WP 34 lb Do not exceed applications per year or 6 lb/A per year. 20-day PHI.

Endosulan use will be canceled on pears on July 31, 2013.


5/18



Pink or Preblossom (Stages 46just beore blossoms open)

Pest or disease/

Material

Amount o






mancozeb 3 or 6 lb Do not use the 6 lb/A rate beyond bloom. 4-hour reentry.

Pristine 4.58.5 oz Do not make more than consecutive applications. -hour reentry.0-day PHI.


Sovran 3.6.4 oz See ootnote 8, page . Rotate with other ungicides. Do not make morethan consecutive applications. -hour reentry. 30-day PHI.


Syllit FL .53 pt Mix with another ungicide. See ootnote , page . 48-hour reentry.7-day PHI.

Ziram 76DF 68 lb 48-hour reentry. 5-day PHI.

Powdery mildew (see ootnote 9, page 12)



HMO such as JMS Stylet oil gal/00 gal water

Do not use within 0 days o a sulur application.


Kumulus 00 lb 4-hour reentry.

Ph-D 6. oz 4-hour reentry. 0-day PHI.

Pristine 4.58.5 oz Do not make more than consecutive applications. -hour reentry.0-day PHI.




Unicorn DF 3 lb Group 3 ungicide + sulur. 5-day reentry. 75-day PHI.

Pseudomonas

streptomycin .% 8.8 oz Do not overuse; bacterial populations can quickly develop resistance tothis antibiotic. -hour reentry. 30-day PHI.

Pink or Preblossom continues on next page


6/18



CONINUEDPink or Preblossom (Stages 46just beore blossoms open)

Pest or disease/

Material

Amount o


Pear psylla adultsNote: Some o the ollowing pesticides are toxic to bees and sh. All are detrimental to predatory mites with this timing.Careully read the labels or precautions.

Asana XL 9.69. oz Do not exceed 0.375 lb ai/A per season.Assail 70WP .3.4 oz 7-day PHI.

Centaur WDG 34.546 oz 14-day PHI.

FujiMite 5EC pt 14-day PHI.

Nexter 6.60.67 oz 7-day PHI.

Pounce 3.EC 86 oz Do not exceed 3 applications per season.

Proaxis .565. oz For psylla suppression only. 21-day PHI.

Rimon 0.83EC 030 oz 14-day PHI.

Green ruitworm, lygus and stink bugs, thrips, pear psylla, rust mites

endosulan 50WP 4 lb Do not apply more than times per year or use more than 6 lb/A per year.

20-day PHI. Endosulan use will be canceled on pears on July 31, 2013.

Calyx (when three-quarters o the petals have allen, beore calyx or central ruit cluster closes)



Scab and powdery mildewSee materials listed or Pink or Preblossom Stage.

Bulls eye rot



7/18



First Cover Spray (about 15 days aer petals all)

Pest or disease/

Material

Amount o



Adament 50WG 45 oz Group 3 + ungicide. -hour reentry. 75-day PHI.

Flint 50WG .5 oz Rotate with other ungicides. Do not make more than consecutive

applications. -hour reentry. 14-day PHI.Inspire Super 8.5 oz Group 3 + 9 ungicide. -hour reentry. 14-day PHI.

mancozeb 3 lb 4-hour reentry. 77-day PHI.

Pristine 4.58.5 oz No more than consecutive applications. -hour reentry. 0-day PHI.


Rubigan 9 oz Should be tank-mixed with a product that has good protection activity.Do not use beore petal all. -hour reentry. 30-day PHI.

Sovran 3.6.4 oz See ootnote 8, page . Rotate with other ungicides. Do not make morethan consecutive applications. -hour reentry. 30-day PHI.


Syllit FL .53 pt Mix with another ungicide. See ootnote , page . 48-hour reentry.7-day PHI.

ebuzol 45DF 48 oz 5-day reentry. 75-day PHI.


Powdery mildew (only i neededsee ootnote 9, page 12)

Adament 50WG 45 oz Group 3 + ungicide. -hour reentry. 75-day PHI.


HMO such as JMS Stylet oil gal/00 gal water

Do not use within 0 days o a sulur application.

Inspire Super 8.5 oz Group 3 + 9 ungicide. -hour reentry. 14-day PHI.Kumulus 00 lb 4-hour reentry.

Ph-D 6. oz 4-hour reentry. 0-day PHI.

Pristine 4.58.5 oz Do not make more than two consecutive applications. -hour reentry.0-day PHI.


Rubigan 8 oz Should be tank-mixed with a product that has good protection activity.Do not use beore petal all. -hour reentry. 30-day PHI.


Sulorix qt/00 gal water See ootnote 5, page .ebuzol 45DF 48 oz 5-day reentry. 75-day PHI.

Unicorn DF 3 lb Group 3 ungicide + sulur. 5-day reentry. 75-day PHI.

First Cover Spray continues on next page


8/18



CONINUEDFirst Cover Spray (about 15 days aer petals all)

Pest or disease/

Material

Amount o


Pear psylla (only i a problem)

Agri-Mek, Epi-mek 0.5EC 60 oz Use up to second cover (late June). Eectiveness o Agri-Mek diminishesin late season. Alternate with other available insecticides or summer

control o pear psylla as a resistance management strategy. 28-day PHI.Assail 70WP 3.4 oz 7-day PHI.

Calypso 4F 48 oz 30-day PHI.

FujiMite 5EC pt 14-day PHI.

Provado .6F 60 oz 7-day PHI.

Codling moth (see ootnote 2, page 12)

Altacor 34.5 oz 5-day PHI.

Assail 70WP 3.4 oz 7-day PHI.

Avaunt 30WDG 6 oz 28-day PHI.

azinphos-methyl

50WSB (Guthion)

lb See ootnote , page . 14- to 21-day PHI.

Calypso 4F 48 oz 30-day PHI.

Carpovirusine 6.83.5 oz 0-day PHI.

Clutch 6 oz 7-day PHI.

CYD-X 6 oz 0-day PHI.

Danitol .4EC 6.3 oz 14-day PHI.

Delegate 67 oz 7-day PHI.

diazinon 50WP 4 lb Limited to application per season. See ootnote 3, page . 21-day PHI.

Entrust 80WP 45 oz 1-day PHI.

Esteem 35WP 45 oz 45-day PHI.

Imidan 70WP 45 lb A water-soluble bag ormulation (70WSB) also is available. 7-day PHI.

Intrepid F 6 oz Apply at or just prior to egg hatch. 14-day PHI.

Proclaim 5SG 3.4.8 oz 14-day PHI.

Virosof See label 0-day PHI.

Pear psylla, stink bugs, aphids

endosulan 50WP 45 lb Do not apply more than times per year or use more than 6 lb/A per year.20-day PHI. Endosulan use will be canceled on pears on July 31, 2013.

Ultor .5SC 04 oz 7-day PHI.

Rust mites only

Agri-mek, Epi-mek 0.5EC 00 oz 28-day PHI.Envidor SC 8 oz 7-day PHI.

Nexter 75WP 5.0.67 oz 7-day PHI.

Vendex 50WP 68 oz 14-day PHI.


9/18



Second Cover Spray (15 or more days aer frst cover spray)

Pest or disease/

Material

Amount o


Scab and powdery mildewSee materials listed or First Cover Stage.

Pear psylla only

Assail 70WP 3.4 oz 7-day PHI.Codling moth (see ootnote 2, page 12)

Altacor 34.5 oz Do not use an adjuvant with Altacor. 5-day PHI.

azinphos-methyl50WP (Guthion)

lb 14- to 21-day PHI.

Centaur 34.5 oz 14-day PHI.


Imidan 70WP 3.55 lb A water-soluble bag ormulation (70WSB) also is available. 7-day PHI.

Pear psylla, stink bugs

endosulan 50WP 45 lb Do not apply more than times per year or apply more than 6 lb/A per year.

20-day PHI. Endosulan use will be canceled on pears on July 31, 2013.

Ultor 04 oz 7-day PHI.

Scale, aphids


Spider mites

Acramite 50WS 0.75 lb 7-day PHI.

Agri-Mek, Epi-mek 0.5EC 00 oz Use up to second cover (late June). Eectiveness o Agri-Mek diminishesin late season. Alternate with other available insecticides or summercontrol o pear psylla as a resistance management strategy. 28-day PHI.

Apollo 50SC 48 oz 21-day PHI.

Envidor SC 8 oz 7-day PHI.

Fujimite pt 14-day PHI.

Kanemite 5SC 3 oz 14-day PHI.

Nexter 75WP 5.0.67 oz 7-day PHI.

Onager 4 oz 28-day PHI.

Savey 50DF 46 oz One application per season. Do not use any combination o Apollo,Onager, and Savey in the same growing season. 28-day PHI.

Vendex 50WP lb Do not apply more than 3 times between petal all and harvest.14-day PHI.

Zeal 7WDG 3 oz 14-day PHI.


10/18



Tird Cover Spray (usually about last o July or frst week in August)

Pest or disease/

Material

Amount o


Codling moth (see ootnote 2, page 12)

Altacor 34.5 oz 5-day PHI.

azinphos-methyl

50 WSB (Guthion)

lb 14- to 21-day PHI.

diazinon 50WP 4 lb See ootnote 3, page . 21-day PHI.

Imidan 70WP 35 lb A water-soluble bag ormulation (70WSB) also is available. 7-day PHI.

Pear psylla, codling moth, scale, aphids

diazinon 50WP 4 lb See ootnote 3, page . IMPORAN: In some areas, diazinon no longergives adequate control o pear psylla. Under such circumstances, useazinphos-methyl or pear psylla and codling moth control. 21-day PHI.

endosulan 50WP 45 lb Do not exceed applications per year or 6 lb/A per year. 20-day PHI.Endosulan use will be canceled on pears on July 31, 2013.

Spider mites

Acramite 50WS 0.75 lb 7-day PHI.Agri-Mek, Epi-mek 0.5EC 00 oz Use up to second cover (late June). Eectiveness o Agri-Mek diminishes

in late season. Alternate with other available insecticides or summercontrol o pear psylla as a resistance management strategy. 28-day PHI.

Apollo 50SC 48 oz 21-day PHI.

Fujimite pt 14-day PHI.

Savey 50WP 46 oz 28-day PHI.

Vendex 50WP 3 lb Do not apply more than 3 times between petal all and harvest.14-day PHI.

Zeal 3 oz 28-day PHI.

Preharvest



Storage rots, such as Bulls eye rot

Pristine 4.58.5 oz Do not use i used or powdery mildew or scab during the growing season.-hour reentry. 0-day PHI.



11/18



Postharvest (in all aer all ruit is harvested)

Pest or disease/

Material

Amount o


Pear lea blister mite, pear rust mite


4 gal/00 gal water

Use this rate postharvest through September. Lime sulur also helpscontrol psylla and mites.


0.75 gal/00 gal water

Sulorix Follow labeldirections

Pear lea blister mite, pear rust mite, scale, aphid and mite eggs, pear psylla


35 gal/00 gal water

Use this rate postharvest in late all when temperatures cool (mid-Octoberthrough November).

superior oil .5 gal/00 gal water

AnthracnoseNote: Apply beore all rains.

bordeaux 8-8-00

Copper-Count-N 8 qt -hour reentry.

Cuprox Ultra 40 Disperss 7.50 lb 48-hour reentry.

Kocide 3000 5.57 lb 48-hour reentry.

ManKocide 6 lb 4-hour reentry.

Nu-Cop 50DF 6 lb 4-hour reentry.



12/18



Footnotes

. Syllit is not compatible with lime and should notbe combined with oils or oil emulsions. Alternatewith other products to delay development oresistant ungi.

. Notice o rst emergence o codling moth sometimesis sent out by Extension agents to growers and/or

newspapers. Pheromone traps are available to moni-tor emergence and activity in individual orchards.3. Diazinon is compatible with erbam, ziram, and wet-

table sulur.4. Although opsin is registered or use or control

o scab, powdery mildew, and storage rots, it isnot recommended or use in orchards. Te use oopsin in orchards will increase the possibility thattolerant (resistant) strains o ungi will develop andincrease losses in orchards and packing houses whereMertect 340F or Decco Salt #9 are used. opsinalso is toxic to earthworms, which help decomposescab-inected leaves.

5. Do not use lime sulur on Anjou and Comice pearsafer the dormant application as it intereres with ruitset. It should be recognized that although lime sulurand other sulur materials are relatively low in cost,they are not without limitations. Te use o sulursmay result in phytotoxicity when temperatures exceed90F ollowing application.

6. Pseudomonas injury may resemble re blight.Although re blight generally is not a problem in theWillamette Valley, it has been observed in some years.Do not use copper-based products on Anjou, Comice,or Forelle pears past delayed dormant stage.

7. Integrated pest management principles are being usedsuccessully in Pacic Northwest orchards to man-age insects, mites, diseases, and other pests. Teseresearch-based techniques provide eective monitor-ing methods and management practices or sustainedand economical control o pests while minimizing

damage to benecial organisms. Improved healthand minimal environmental impact are benets ofencited in IPM-managed orchards using reduced pesti-cide programs.

Te comprehensive reerence, Orchard PestManagement: A Resource Book or the PacicNorthwest, 993, edited by Beers, Brunner, Willet,and Warner, was produced by research and Extensionpersonnel rom the tristate region. It serves as OSUsguide to eective IPM principles or managing insectand mite pests in the state. We recommend its usein conjunction with the numerous regional OSU

Extension Service Orchard Pest Management Guidesproduced and/or distributed in the dierent treeruit districts o the state. It addresses key elementso IPM or controlling pests, including prevention,monitoring, indicating Action Levels or pest densi-ties at which time to apply controls, and eectivealternative strategies based on current knowledge.Although designed or the commercial orchard, manyprinciples and control considerations apply to non-commercial trees.

8. Sovran drif may injure sweet cherry cultivars suchas Van. Please be extra careul when spraying near

cherry orchards.9. Do not exceed our applications per season o Group

ungicides such as Sovran, Flint, Pristine, etc.


13/18



Table 1. Spotts Model or Estimating Pear Scab Inection Periods

Average temperature (F)

during lea wetness

Minimum hours o lea wetness

required or inection

45 5

46

48 9

50 7

5 5

54 3

55

57

59

6

63 0

64 0

66 0

68 0

70 0

7 0

73 0

75 0

In the all, examine all leaves on 0 shoots on each o 0 trees scattered throughout the orchard. I you nd ewer than sixleaves with scab, the overall risk rom scab is low enough to skip the rst ungicide spray at pink stage.

Te end o the ascospore inection period occurs afer the rst rain ollowing the accumulation o ,60 degree days(3F base) starting at delayed dormant stage.


14/18



Table 2. Efectiveness o Fungicides and Bactericides

or Pear Disease Management

Fungicideor bactericide

Fungicidegroup # Pear scab Powdery mildew Bulls eye rot Storage rots Fire blight

Adament 3 + GoodExcellent Excellent ?? ?? None

Blight Ban Not classied ?? ?? ?? ?? PoorFair

Copper-based products M ?? Fair?? Poor ?? Fair

Flint Excellent** Excellent** Fair ?? None

Horticultural mineral oils Not classied ?? Good ?? ?? None

Lime sulur M Good Fair ?? ?? None

Mancozeb products M3 Excellent None Poor ?? None

ManKocide M3 + M Excellent None Poor ?? Fair

Oxytetracycline 4 None None None None FairGood**

Ph-D 7 ?? Good ?? ?? None

Pristine 7 + GoodExcellent** Excellent** Good FairGood None

Procure 3 Good** Excellent** ?? ?? None

Rubigan 3 Good** Excellent** ?? ?? None

Scala 9 FairGood None ?? ?? None

Serenade Max Not classied ?? Fair ?? ?? FairGood

Sovran Excellent** Excellent** ?? ?? None

Streptomycin 5 None None None None PoorExcellent**

Sulur M Fair Good ?? ?? None

Syllit M7 Good** None ?? ?? None

ebuzol 3 Good** Excellent** ?? ?? None

opsin Good** Good** Excellent Good None

Unicorn 3 + M Good Good ?? ?? None

Ziram M3 Fair None Fair FairGood None

See ootnote 4, page .

*Tese ratings are relative rankings based on ull application rates, good spray coverage, and proper spray timing. Actual levels o disease control will be

inuenced by these actors in addition to cultivar susceptibility, disease pressure, and weather conditions. Possible ratings or disease control include none,

poor, air, good, or excellent.

**Resistant pathogens will lower the eectiveness o this ungicide.

Follow the Rules or ungicide stewardship:

Rotate or mix ungicides o dierent chemical groups.Use labeled rates.Limit total number o applications.Educate yoursel about ungicide activity, mode o action, and classas well as resistance management practices.

Start a ungicide program with multisite mode o action materials.


15/18



Table 3. Registered Herbicides or Orchard Crops in OregonFor a more complete guide to orchard crop weed management, please reer to the PNW Weed Management

Handbook, available in print or online (http://pnwhandbooks.org/weed/). For access to herbicide labels, visitthe CDMS Agro-chemical database (http://www.cdms.net/LabelsMsds/LMDeault.aspx) or Greenbook(http://www.greenbook.net).

Site preparation

Material Uses Rate

glyphosate (numerousproduct names)

Read label careully or crops listed andgeographic location.

New plantings (newly planted trees less than 1 year old), nonbearing

Material Uses Rate

napropamide (Devrinol) All except chestnuts 5 lb ai/A (50 lb/A Devrinol 0-G)

oryzalin (Suran) 6 lb ai/A (6 qt/A Suran AS)

pendimethalin(Prowl H0, 3.3)

All ruits and nuts .96 lb ai/A (6.3 qt/A) depending ondesired weed control and crop

umioxazin(Chateau SW and WDG)

Pome, stone, and nut trees 0.880.38 lb ai/A Chateau WDG. Slightdierences in rates and uses in SW andWDG labels. Reer to label or organicmatter, soil types, and rates or variousbroadlea weeds.

isoxaben(Gallery or Gallery & V)

Nonbearing crop only, except chestnuts 0.5 lb ai/A (0.66.33 lb/A product)

triuralin (rean 4EC) Newly established, nonbearing and bearing,except pears, chestnuts, and hazelnuts

0.5 lb ai/A ( pt/A rean 4EC)

isoxaben + triuralin(Snapshot .5G)

Nonbearing crop only, except chestnuts 5 lb ai/A (00 lb/A Snapshot .5G)

triuralin + isoxaben +

oxyuoren (Showcase)

Nonbearing crops only, including apricots,

cherries, nectarines, peaches, plums,and prunes; excluding apples, pears,hazelnuts, walnuts, and chestnuts

.55 lb ai/A (0000 lb/A Showcase)

pronamide (Kerb) 4 lb ai/A (8 lb/A). Rate depends onspecies present and soil texture.

uaziop (Fusilade DX) Apples, pears, hazelnuts, and walnuts 0.50.375 lb ai/A (64 oz/A FusiladeDZ). Reer to specic grassy weeds onlabel.

sethoxydim (Poast) Except prunes and plums 0.80.47 lb ai/A (.5.5 pt/A product)

clethodim (Envoy, Prism,Select)

Nonbearing trees only 0.060.5 lb ai/A (68 oz/A Select)

paraquat (Gramoxone Inteon,Firestorm)

0.65 lb cation/A (.54 pt/A Gramoxone;.7.7 pt/A Firestorm)




Wiper: 33% solution

gluosinate ammonium (Rely) Apples, hazelnuts, and walnuts 0.75.5 lb ai/A (36 qt/A Rely)

oxyuoren (Goal XL) .5 lb ai/A (58 pt/A Goal XL)


16/18



Established plantings/Applications that persist in the soil

Material Uses Rate

pendimethalin (Prowl H0) Prowl HO: .96 lb ai/A (6.3 qt/A)depending on desired length o weedcontrol and crop

umioxazin

(Chateau SW and WDG)

Pome, stone, and nut trees 0.880.38 lb ai/A Chateau WDG. Slight

dierences in rates and uses in SW andWDG labels. Reer to label or organicmatter, soil types, and rates or variousbroadlea weeds.

dichlobenil (Casoron) Apples, pears, cherries, and hazelnuts 46 lb ai/A (0050 lb/A Casoron)

diuron (Karmex DF andothers)

Apples, pears, peaches, hazelnuts, andwalnuts only

See label or crop-specic application rates.

indaziam (Alion) Except chestnuts 0.0650.085 lb ai/A (56.5 oz/A product)depending on soil texture

isoxaben (rellis) Bearing nuts and vineyards 0.4950.998 lb ai/A (0.66.33 lb/A product)

simazine (Princep Caliber

90 is a Special Local Needslabel (OR-080038) or sweetcherries only). art cherrieshave a ederal label orPrincep 4L, Caliber 90, andother simazine herbicides inOregon.

Except chestnuts, apricots, prunes, and

nectarines

See product labels or rates.

terbacil (Sinbar 80) Bearing apples and peaches only;labeled or nonbearing apricot, pear,apple, cherry, peach, and plum

0.40.8 lb ai/A (0.5 lb/A), newlyestablished; 4 lb/A Sinbar, bearing,depending on soil type

norurazon (Solicam) Except chestnuts .977.8 lb ai/A (.50 lb/A Solicam)

napropamide (Devrinol) Except chestnuts 5 lb ai/A (50 lb/A Devrinol 0G)

oryzalin (Suran AS) Except apples, cherries, nectarines, peaches,prunes, and walnuts

6 lb ai/A (6 qt/A Suran)

pronamide (Kerb) Except hazelnuts and walnuts 4 lb ai/A (8 lb/A Kerb 50W)

triuralin (rean 4EC) Stone ruit and walnuts 0.5 lb ai/A ( pt/A rean 4EC)



17/18



Established plantings/Postemergence contact and translocated herbicides

Material Uses Rate

paraquat (Gramoxone Max,Firestorm)

0.65 lb cation/A (.54 pt/A Gramoxone;.7.7 pt/A Firestorm)


pyrauen (Venue) 0.74 oz product/A (0.000.006 lb ai/A)

sauenacil (reevix) Pome ruits and walnuts oz/A (0.045 lb ai/A)


Spray: Read label careully or crops listedand geographic location.


Wiper: 33% solution

gluosinate ammonium (Rely) Apples, hazelnuts, and walnuts 0.75.5 lb ai/A (36 qt/A Rely)

,4-D amine (Saber, Weed-Rhap A4D, Dri-CleanHerbicide)

0.95.4 lb ae/A (3 pt/A Saber)

clopyralid (Stinger) Stone ruits only 0.0.5 lb ae/A (0.330.66 pt/A Stinger)

rimsuluron (Matrix FNV) All ruit and nut crops 0.063 lb ai/A (4 oz/A Matrix FNV per year)halosuluron (Sandea) Apples, hazelnuts, and walnuts Apples: 0.0350.094 lb ai/A (0.75 oz/A)

Nut crops: 0.030.063 lb ai/A (2 1 oz/A)

clethodim (Select Max,Arrow)

Peaches only 0.0680. lb ai/A (96 oz/A Select Max);0.0940.5 lb ai/A (68 oz/A Arrow)

uaziop (Fusilade DX) Bearing stone ruits 0.50.375 lb ai/A (64 oz/A FusiladeDX). Reer to specic grassy weeds listedon label.

sethoxydim (Poast) Except prunes and plums 0.80.47 lb ai/A (.5.5 pt/A Poast)

Grass suppression in row middles (chemical mowing)

Material Uses Rate



sethoxydim (Poast) 0.09 lb ai/A (0.5 pt/A Poast)


18/18


OSU Internet Resources

or Plant ProtectionInormation regarding plant protection is available romseveral sources at OSU. Te ollowing listings are excellentexamples:

OSU Integrated Plant Protection Center. Onlineweather data and degree day inormation or insectpests and diseases (http://uspest.org/wea/)

Eastern lbert blight help pageall the inormationyou need or this disease(http://oregonstate.edu/dept/botany/epp/EFB/)

Codling moth development inormation(http://ippc2.orst.edu/cgi-bin/ddmodel.pl?clm)

Apple scab inection season inormation(http://ippc2.orst.edu/cgi-bin/ddmodel.pl?spp=asc)

Pear scab inection season inormation(http://ippc2.orst.edu/cgi-bin/ddmodel.pl?spp=asp)

Pear scab inection period inormation or the HoodRiver Valley (http://ippc2.orst.edu/hr/)

Fire blight risk inormation(http://ippc2.orst.edu/cgi-bin/ddmodel.pl?fl)

Directions or the use o each model are available ateach site.

Pacic Northwest Plant Disease ManagementHandbook (http://pnwhandbooks.org/plantdisease )

Pacic Northwest Insect Management Handbook(http://pnwhandbooks.org/insect)

Pacic Northwest Weed Management Handbook(http://pnwhandbooks.org/weed)

Basic Elements

o Sae Pesticide Use Always read the label with care. Tis is the rst step in

selecting the right material or the job. Never rely onyour memory. Beore opening the container, pay strictattention to warnings and cautions printed on the label.

Keep all pesticide and spray materials out o the reacho children, pets, and irresponsible persons. Storage

outside o the home, away rom ood and eed, andunder lock and key is the saest method.

Store only in the original container and keeptightly closed.

NEVER smoke, eat, or drink while applying pesticides. Avoid inhalation or direct contact. Always wear protec-

tive clothing and saety devices as recommended onthe label.

Avoid spills. I spills occur, take immediate action toremove contaminated clothing and wash thoroughly.

Afer each application, bathe and change to clean cloth-ing. Wash clothing afer each use. Always use reshclothing when starting new application.

Avoid contamination o sh ponds and water supplies.Cover eed and water containers when treating aroundlivestock or pet areas.

Keep separate equipment or use with hormone-typeherbicides to avoid accidental injury to susceptibleplants. Also avoid applications under wind conditionsthat could create drif to nontarget areas.

Rinse empty containers three times beore disposingo them. Add the rinse to the spray tank and dispose ocontainers according to local regulations to avoid haz-ard to humans, animals, and the environment.

Follow label directions or mixing and application tokeep residues within the limits prescribed by law.

Plan ahead. Discuss with your physician the materialsyou will be using during the season so that he or shecan be prepared to provide the appropriate treatmentin case o accidental exposure. I symptoms o illnessoccur, call the physician or get the patient to a hospitalimmediately. Always provide the medical personnelwith as much inormation as possible.

Be cautious when you apply pesticides. Know yourlegal responsibility as a pesticide applicator. You may beliable or injury or damage resulting rom pesticide use.

Oregon Poison Center

Te Oregon Health & Science University38 S.W. Sam Jackson Park Road

Portland, OR 9739Phone: -800--

I a person has collapsed or is not breathing, dial 911.

Prepared by Je Olsen, Extension horticulturist, Yamhill County; Jay W. Pscheidt, Extension plant pathology specialist; and Ed Peachey, assistant proessoro weed science, Department o Horticulture; all o Oregon State University. Te inormation in this pest management guide is valid or 0. rade-nameproducts and services are mentioned as i llustrations only. Tis does not mean that the Oregon State University Extension Service either endorses these prod-ucts and services or intends to discriminate against products and services not mentioned. Due to constantly changing laws and regulations, the Oregon StateUniversity Extension Service can assume no liability or the suggested use o chemicals contained in this guide. Pesticides should be applied according to thelabel directions on the pesticide container.

0 Oregon State University. Tis publication was produced and distributed in urtherance o the Acts o Congress o May 8 and June 30, 94. Extensionwork is a cooperative program o Oregon State University, the U.S. Department o Agriculture, and Oregon counties. Oregon State University ExtensionService oers educational programs, activities, and materials without discrimination based on age, color, disability, gender identity or expression, maritalstatus, national origin, race, religion, sex, sexual orientation, or veterans status. Oregon State University Extension Service is an Equal Opportunity Employer.

Revised February 0.

pear pest managament guide

Documents