1 / 32

Oxy-phenoxy ACCase

More Oxy-phenoxy . These are acids and are formulated at esters ? no real problem with volatility, but these must be converted ?by the plant" back to the acid!The formulation as an ester allows them to be rapidly absorbed by grasses and translocatedThese may become a very important tool if and whe

erv
Download Presentation

Oxy-phenoxy ACCase

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Oxy-phenoxy (ACCase) Family commonly called graminicides – grass control herbicides – both annual & perennial Single site MOA – inhibits the ACCase (acetyl-CoA) enzyme system Systemic, foliar activity, little soil activity with reasonable rates Many have active and inactive isomers – only importance to this is trade name changes Fusilade > Fusilade 2000 > Fusilade DX Activity of this family often reduced when tank mixed with a contact herbicide

    2. More Oxy-phenoxy These are acids and are formulated at esters – no real problem with volatility, but these must be converted “by the plant” back to the acid! The formulation as an ester allows them to be rapidly absorbed by grasses and translocated These may become a very important tool if and when glyphosate resistant weeds develop or Roundup Ready crops escape or cross-breed After use – shoots slip, one way to know they are working.

    3. Even More Oxy-phenoxy Essential to use surfactant or COC Most are very sensitive to drought – don’t use Select, Fusilade DX, and Select seem to perform better that Poast Plus in OK Hoelon not used much in OK – grazing restriction and not active on perennial grasses This family has made it even easier to go no-till or reduce dependence on DNA and incorporation. All cleared for use on cotton and soybeans. Keep away from corn and grain sorghum

    4. Fluazifop – Fusilade DX (Learn)

    5. Fluazifop - Fusilade DX Good performer in OK Not cleared for peanuts or alfalfa

    6. Fluazifop - Fusilade DX

    7. Clethodim - Select

    8. Clethodim - Select One of the best performers. Cleared for use in peanuts

    9. Quizalofop – Assure II

    10. Quizalofop – Assure II Good performer in OK Really, Assure II, Select, and Fusilade DX are essentially equal in effectiveness Check the label to insure that your crop is included.

    11. Sethoxydim – Poast Plus

    12. Sethoxydim – Poast Plus Very good in MS delta, but not as good in the west “Plus” has an uv inhibitor Can be used on Peanuts and alfalfa For you strawberry lovers – you can use Poast Plus to control your grasses!!

    13. Fenoxaprop – Acclaim, Whip, Horizon

    14. Fenoxaprop Whip for broadleaf crops – used very little Acclaim for use in lawns Horizon used on highway rights-of-way Not heavily used in any area

    15. Diclofop – Hoegrass, Hoelon

    16. Diclofop - Hoelon Restricted use – toxic to fish Wild oat control in spring wheat, works in winter wheat but cannot graze wheat No perennial grass control Has best PRE activity, but many herbicides are better

    17. Greenbook.net Is Hoelon used on winter wheat, what perennial grasses does Hoelon control, is a surfactant or COC needed for Assure II, Select, Fusilade DX, Poast Plus, what is said about drought and Assure II, Select, Fusilade DX, Poast Plus use, what is Dash, should you tank mix Assure II, Select, Fusilade DX, Poast Plus with other herbicides, can Fusilade DX, Poast Plus, Select be used on peanuts

    18. Diphenyl ethers Family noted for broadleaf weed control All have POST activity, some have PRE activity Soil activity short lived, does not translocate Were one of the first families that could control morningglories with POST over-the-top applications Excellent for spurge control – copperleaf Since this family is used in soybeans and peanuts there is a desire to tank mix with graminicides – grass control will decline

    19. More Diphenyl ethers Normally used with a surfactant or COC, but with some tank mixes you don’t – read label Tank mixed and premixed with several other herbicides. Storm = Blazer + Basagran (cocklebur, morningglory, copperleaf, etc. much broader spectrum). Many additionally add a small quantity (just a few fluid ounces) of 2,4-DB and activity increases even more. EPA is watching this family pretty closely – must be some problems with animal toxicology

    20. Diphenyl ether

    21. Acifluorfen – Blazer (Learn)

    22. Blazer + COC

    23. Blazer + COC

    24. Acifluorfen Used in rice, peanuts and soybeans Many uses replaced by newer herbicides, but if you have a spurge problem – here is a solution Farmers are concerned about injury to crop foliage, but we have not seen a yield reduction as a result of its use.

    25. Lactofen - Cobra

    26. Cobra

    27. Lactofen Used on only soybeans over-the-top, PDS in cotton and not on Peanuts at all Causes a little more injury, but controls weeds better

    28. Oxyfluorfen - Goal

    29. Oxyfluorfen - Goal POST directed in cotton PRE in soybeans Some container ornamentals Cannot be used over-the-top of any crop because of the crop injury. Has reasonably good residual activity in soil, but its real strength is its superior POST activity when applied PDS

    30. Fomesafen - Reflex

    31. Fomesafen - Reflex Soybean uses only. “IF” we could use it in peanuts – eclipta would almost be eliminated Has good foliar activity and pretty good soil activity. Seems more effective than Blazer and causes less injury than Cobra The residual soil activity is a bonus

    32. Blazer Goal

More Related