chateau - nufarm · chateau’s mode of action is different than many other commonly used...

Chateau®

Herbicide WDG

Horticulture CropsTechnical Manual

Innovative solutions. Business made easy.

82998 Chateau Brochure.indd 1 13-01-17 11:55 AM

Aim:To provide long lasting pre-emergence residual control of many problematic broadleaf and grass weeds in various horticulture crop production systems.


Introduction:Chateau® Herbicide works as a barrier along the soil surface to provide season-long residual control of tough broadleaf and grass weeds. This includes pigweed, lamb’s-quarters, common ragweed, dandelion, eastern black night-shade, hairy nightshade and green foxtail.

Chateau contains flumioxazin (51.1%), a powerful pre-emergence herbicide. A PPO inhibitor, Chateau’s mode of action is different than many other commonly used herbicides; therefore, it helps fight resistance, while providing long-lasting control of tough weeds.

Chateau Herbicide offers growers excellent residual control of many problematic weeds while being environmentally friendly, as it is not prone to leaching or volatilizing.

Benefits of Using Chateau:• ChateauHerbicideisagrower’snewadvantageinthefightagainst

a broad spectrum of challenging to control weeds.

• GrowerswhoapplyaresidualherbicidesuchasChateaucanstop weeds with long-lasting pre-emergence action.

• GrowerscanrelyonChateauasatooltoimprovethequalityoftheir crop and increase their profits.

• Chateaukeepsweedsfromgerminatingformonths(ratedependant). It is activated after ¼ inch rainfall.

• Chateaustayswhereyouputit:itwillnotleachorvolatilize.

• Flexibleapplicationtiming.

• Chateaubelongstothegroup14classificationof herbicides, which allows growers the added benefit of managing weed resistance on their farm.

• Flumioxazinisactive in very small amounts…as long as the herbicide barrier is not disturbed, flumioxazin will provide residual weed control.


Mode of Action:Chateau contains flumioxazin 51.1 %.

Flumioxazininhibitstheactivityofprotoporphyrinoginoxidase(PPOenzyme). Chateau’s mode of action is different than many other commonly used herbicides. So it helps fight resistance, while providing long-lasting control of tough weeds.

PPO inhibitors may also be referred to as cell membrane disruptors. Some PPO-inhibitors can be applied pre-emergence for weed control, as is the case with Chateau.

When applying Chateau as a standalone herbicide, the application needs to be made to bare ground. A tankmix partner, such as glyphosate, is needed to control emerged weeds. After application, a small amount of rainfall or irrigation is required to activate the herbicide. Chateau will then form an invisible barrier along the soil surface. When germinating susceptible weeds come into contact with this barrier, they will be controlled. If the ground is disturbed (mechanical tilling etc) the Chateau barrier will be disrupted and weeds will emerge where the herbicide barrier was broken.

Chateau offers residual control of several susceptible broadleaf and grass weeds. It also assists in the control of acetolactate synthase (ALS) resistant weeds. The length of residual control is dependent on the application rate as well as on rainfall and temperature conditions. Length of residual control will decrease as temperature and precipitation increase; and where soils contain high organic matter and/or high clay content.

4


Registered Crops:• PomeFruit(ApplesandPears)

• StoneFruit(Cherry,Peach,Nectarine, Apricot, Plum)

• Grapes

• Blueberries(Highbush and Lowbush)

• Strawberries

• Potatoes

• DryBulbOnions

• FieldPeppers

• Celery

• Asparagus

• Mint

Weeds Controlled: (Suppression in potatoes)• Redrootpigweed

• Greenpigweed

• Commonragweed

• Commonlamb’s-quarters

• Greenfoxtail

• Hairynightshade

• Dandelion

• Easternblacknightshade

• Moss(suppressioninlowbushblueberry)

5


Application Information: Crop Rate PomeFruit(Apple&Pear)&Grape *280–420g/ha(113–170g/ac)

StoneFruit(Peach,Cherry,Nectarine,Apricot) *280–420g/ha(113–170g/ac)

HighbushBlueberry *280–420g/ha(113–170g/ac)

LowbushBlueberry *140–210g/ha(57–85g/ac) Moss:280–420g/ha(113–170g/ac)

Strawberry ***210g/ha(85g/ac)

Potato **105g/ha(42g/ac)

DryBulbOnion *140g/ha(57g/ac)

FieldPepper *140–210g/ha(57–85g/ac)

Celery *140–210g/ha(57–85g/ac) Mucksoils:140g/ha(57g/ac)

Asparagus *280–420g/ha(113–170g/ac)

Mint(PeppermintandSpearmint) *280g/ha(113g/ac)

*280g/haforCourse-texturedsoiltype.480g/haforMedium-texturedsoiltype.*140g/haforCourse-texturedsoiltype.210g/haforMedium-texturedsoiltype.***210g/haforCourse-texturedsoiltype.**105g/haforCourse-texturedsoiltype.

Apply Chateau before targeted weeds emerge. Moisture(rainorirrigation)followingapplicationisneededtoactivatetheactiveingredient.

FormaximumweedcontrolavoiddisturbingtheChateauherbicidebarrier.Donot mechanically incorporate after application.

Onions, Untreated Plots Onions, Chateau Applied Plot (at 2 leaf)


Crop Specific Application Instructions:

Pome Fruit, Stone Fruit and Grapes: Apply Chateau as a uniform broadcast spray or direct a band at the base of the trunk with a sufficient watervolume.Forbestresultsmaketwosequentialapplicationsatleast30daysapart (fall and spring, after final harvest or before bud break for greatest crop safety). If weeds have emerged Chateau can be applied in tank mixture with a burndown product such as glyphosate. Chateau can be applied to pome and stonefruittreesestablished1yearormoreandtograpesestablished2yearsormore.PHI:60days.Re-entryinterval:12hours.Chateaucannotbeappliedwithin100metresofnon-dormantpears.

Highbush Blueberries: Apply Chateau using a sufficient water volume. Forbestresultsmake2sequentialapplicationsatleast30daysapartbeforebudbreak in the spring. If weeds have emerged Chateau can be applied in tank mixture with a burndown product such as glyphosate. Chateau can be applied to highbushblueberriesestablished2yearsormore.Avoidspraycontactwithcropfruitandfoliage.PHI:7days.Re-entryinterval:12hours.

Lowbush Blueberries: Apply Chateau with adequate water volume toensurethoroughcoverage.Forbestresultsmake2applicationsperseasonatleast30daysaparttodormantplantsinthesproutyear(springand/orfall)or asadormantpostharvest(fall).Re-entryinterval:12hours.

Strawberries:ForbestresultsapplyChateautodormantstrawberryplant(do not apply to non-dormant plants) late in the fall/early winter prior to laying straw or early in the spring. If applying in the winter do not apply over top of snow.Re-entryinterval:12hours.

Potatoes: Apply Chateau prior to cracking. Use sufficient water volume for thoroughcoverage.Forbestresultsavoidmechanicalincorporationintothesoilor disturbance of the soil surface as this will reduce weed control. Chateau may be applied to potatoes after hilling. A minimum of 5 cm of soil must cover the vegetative portion of the potato plant at the time of Chateau. Re-entryinterval:12hours

Onions, Chateau Applied Plot (at 2 leaf) 7


Crop Specific Application Instructions continued:

Celery: Adequate water volume is required for thorough coverage. Apply Chateau as a hooded or shielded application to row middles prior to transplantingforpre-emergencecontroloftheweeds.Forbestresultsplantsshouldbegrownonraisedorplasticmulchedbedsthatareatleast10cm higher than the treated row middle and the mulched bed must have a minimum ofa60cmbedwidth.Re-entryinterval:12hours.

Field Peppers: Apply using adequate water volume for thorough spray coverage.ForbestresultsapplyChateauasahoodedorshieldedapplication to row middles prior to transplanting for pre-emergence control of the weeds. Plants should be grown on raised or plastic mulched beds that are at least 10cmhigherthanthetreatedrowmiddleandthemulchedbedmusthave aminimumofa60cmbedwidth.Donotapplyduringorafterbloom.

Dry Bulb Onions: Forbestresultsapplytotransplantedonionsbetweenthe2- leafand6-leafstageandondirectseedonionsbetweenthe3-leafand6-leafstagepriortoemergenceofweeds.Ensurethoroughcoverageduringapplication.

Asparagus:Forbestresultsapplytodormantasparagus(establishedforatleast1year)nolessthan14daysbeforespearsemergeandpriortoweedemergence. Apply using adequate water volume for thorough spray coverage.

Stone Fruit, Untreated Check, WA


Mixing Instructions:

1.Fillcleanspraytank1/2to2/3ofdesiredlevelwithcleanwater. Engagegentleagitation.

2.Whileagitating,slowlyaddChateauHerbicideWDGtothespraytank.Agitation should create a rippling or rolling action on the water surface.

3.IftankmixingChateauHerbicideWDGwithotherlabeledherbicides, add water-soluble bags first, followed by dry formulations, flowerless, emulsifiable concentrates and then solutions. Prepare no more spray mixture than is required for the immediate spray operation.

4. Add adjuvants or surfactants, if recommended.

5. Fillspraytanktodesiredlevelwithwater.Agitation should continue until spray solution has been applied.

Mixonlytheamountofspraysolutionthatcanbeappliedthedayofmixing.ChateauHerbicideWDGshouldbeappliedwithin6hoursofmixing.

British Columbia, 2005

Stone Fruit, Rimsulfuron @ 0.4 lb ai/A + Flumioxazin @ 0.313 lb ai/A, WA


Notes:

10


Notes:

11


Nufarm is the marketer of Valent products in Canada. To learn more about Chateau® or any other Nufarm products visit our website or call

our technical support line, toll-free.

www.nufarm.ca1-800-868-5444

Thisinformationisformarketingpurposesonly.ALWAYSREADANDFOLLOWTHELABELBEFOREUSINGANYNUFARMPRODUCTS.Chateau®isaregisteredtrademarkofValentU.S.A.Corporation.

January2013


chateau - nufarm · chateau’s mode of action is different than many other commonly used...

Documents