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EP-4739114-A1 - HERBICIDAL MIXTURES COMPRISING SYNTHETIC AUXINS AND USES THEREOF

EP4739114A1EP 4739114 A1EP4739114 A1EP 4739114A1EP-4739114-A1

Abstract

The present invention provides herbicidal mixtures comprising at least two synthetic auxin herbicides and at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide; compositions comprising said herbicidal mixtures; and methods for controlling weed utilizing said compositions.

Inventors

  • ROYER, Caroline
  • KERGOAT, Pierre-Yves
  • SHARON, Eti
  • CAMPIONI, Lorenzo
  • YOGEV, Ehud

Assignees

  • Adama Agan Ltd.

Dates

Publication Date
20260513
Application Date
20240702

Claims (20)

  1. 1. An herbicidal mixture comprising at least two synthetic auxin herbicides and at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide.
  2. 2. The herbicidal mixture of claim 1, wherein each one of said at least two synthetic auxin herbicides is selected from a pyridine carboxylate, a pyridyloxy carboxylate, a benzoate, a quinoline carboxylate, a phenoxy carboxylate, aminocyclopyrachlor, and benazolin-ethyl.
  3. 3. The herbicidal mixture of claim 2, wherein said pyridine carboxylate is aminopyralid, clopyralid, halauxifen, florpyrauxifen, or picloram; said pyridyloxy carboxylate is fluroxypyr or triclopyr; said benzoate is chloramben or dicamba; said quinoline carboxylate is quinclorac or quinmerac; and said phenoxy carboxylate is dichlorprop, MCPA, MCPB, mecoprop, 2,4, 5-T, 2,4-D, 2,4-DB, or clomeprop.
  4. 4. The herbicidal mixture according to any one of claims 1-3, wherein each one of said at least two synthetic auxin herbicides is selected from a pyridine carboxylate and a quinoline carboxylate.
  5. 5. The herbicidal mixture of claim 4, wherein said pyridine carboxylate is aminopyralid, clopyralid, or halauxifen; and said quinoline carboxylate is quinmerac.
  6. 6. The herbicidal mixture of claim 5, wherein said at least two synthetic auxin herbicides consist of two synthetic auxin herbicides selected from aminopyralid and quinmerac; aminopyralid and clopyralid; aminopyralid and halauxifen; quinmerac and clopyralid; and quinmerac and halauxifen.
  7. 7. The herbicidal mixture of claim 6, wherein said at least two synthetic auxin herbicides consist of aminopyralid and quinmerac.
  8. 8. The herbicidal mixture according to any one of claims 1-7, wherein said very long chain fatty acid (VLCFA) synthesis inhibitor is an a-chloroacetamide, an a-thioacetamide, an a-oxyacetamide, an oxirane, an isooxazoline, an azolyl-carboxamide, a benzofurane, or a thiocarbamate; and said amide-based herbicide is napropamide, naproanilid, or diphenamid.
  9. 9. The herbicidal mixture of claim 8, wherein said a-chloroacetamide is dimethenamid, metazachlor, acetochlor, alachlor, butachlor, dimethachlor, metolachlor, pethoxamid, pretilachlor, propachlor, thenylchlor, or propisochlor; said a-thioacetamide is anilofos or piperophos; said a-oxyacetamide is mefenacet or flufenacet; said oxirane is indanofan or tridiphane; said isooxazoline is fenoxasulfone or pyroxasulfone; said azolyl-carboxamide is cafenstrole, fentrazamide, or ipfencarbazone; said benzofurane is benfuresate or ethofumesate; and said thiocarbamate is thiobencarb (benthiocarb), vernolate, tri-allate, esprocarb, molinate, orbencarb, prosulfocarb, cycloate, dimepiperate, or EPTC.
  10. 10. The herbicidal mixture of claim 8 or 9, wherein said very long chain fatty acid (VLCFA) synthesis inhibitor is an a-chloroacetamide selected from metazachlor and dimethenamide; and said amide-based herbicide is napropamide.
  11. 11. The herbicidal mixture of claim 10, wherein said at least one additional herbicide is one additional herbicide selected from metazachlor, dimethenamide, and napropamide.
  12. 12. The herbicidal mixture according to claim 1, wherein said at least two synthetic auxin herbicides consist of two synthetic auxin herbicides selected from aminopyralid and quinmerac; aminopyralid and clopyralid; aminopyralid and halauxifen; quinmerac and clopyralid; and quinmerac and halauxifen; and said at least one additional herbicide is at least one of metazachlor, dimethenamide, or napropamide.
  13. 13. The herbicidal mixture according to claim 12, wherein said at least two synthetic auxin herbicides consist of aminopyralid and quinmerac; and said at least one additional herbicide is one additional herbicide selected from metazachlor, dimethenamide, and napropamide.
  14. 14. The herbicidal mixture according to claim 13, wherein the weight ratio between aminopyralid and quinmerac is in the range of from about 1 : 1 to about 1 : 100, preferably from about 1 : 10 to about 1 :50; and/or the weight ratio between aminopyralid and said one additional herbicide is in the range of from about 1 : 1 to about 1 :300, preferably from about 1 :40 to about 1 : 100.
  15. 15. A composition comprising an herbicidal mixture comprising at least two synthetic auxin herbicides; at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide; and an agriculturally acceptable carrier.
  16. 16. The composition of claim 15, further comprising at least one agriculturally acceptable excipient such as a surfactant.
  17. 17. A method of controlling weed comprising applying to a locus an effective amount of a composition according to claim 15 or 16.
  18. 18. The method of claim 17, wherein said locus is a field of crop.
  19. 19. The method of claim 18, wherein said crop is selected from plants of the genus Brassica, sunflower, corn, soybean, wheat, barley, oats, chickpeas, fruit trees, nut trees, lentils, sugar beet, and grain sorghum.
  20. 20. The method of claim 17, wherein said weed is Matricaria, Aethusa cynapium, Anthemis arvensis, Capsella bursa-pastor is, Centaurea cineraria, Centaurea cyanus, Chenopodium album, Daucus carota, Descurainia Sophia, Fumaria officinalis, Geranium dissectum, Geranium pusilium, Lamium amplexicaule, Lamium purpureum, Tripleurospermum inodorum, Mercurialis annua, Myosotis arvensis, Papaver rhoeas, Fallopia convolvulus, Senecio vulgaris, Sinapis arvensis, Solanum nigrum, Sonchus arvensis, Spergula arvensis, Sisymbrium officinale, Thlaspi arvense, Veronica arvensis, Veronica hederifolia, Viola, Papaver, Lolium, Alopecurus, Apera, Sinapis, Stellaria, Galium, Lamium, Myosotis, or Veronica.

Description

HERBICIDAL MIXTURES COMPRISING SYNTHETIC AUXINS AND USES THEREOF TECHNICAL FIELD [0001] The present invention relates to an herbicidal mixture comprising at least two synthetic auxin herbicides and at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide; and a composition comprising said herbicidal mixture and an agriculturally acceptable carrier. Said compositions are useful in controlling weed. BACKGROUND ART [0002] Controlling weed or undesired vegetation is important to achieve high crop yield and quality. Often, crop cultures contain various undesired weeds and although herbicides can provide protection against a spectrum of weeds, they may not have any effect on certain type of weeds that might be present in the crop culture. Therefore, there is usually a strong need for using a mixture of herbicides. [0003] Moreover, in crop protection, it is desirable to increase the specificity and the reliability of the action of active compounds, more particularly, to make sure said active compounds effectively control the harmful plants and, at the same time, are tolerated by the useful plants in question. [0004] Mixtures of selected herbicides have several advantages over the use of a single herbicide including (a) an increase in the spectrum of weeds controlled or an extension of weed control over a longer period of time; (b) an improvement in crop safety and reduction in crop phytotoxicity by using minimum doses of selected herbicides applied in combination rather than a single high dose of one herbicide; and (c) a delay in the appearance of resistant weed species to selected herbicides. Yet, it is often difficult to predict the activity and selectivity of a specific herbicide mixture, considering that the behavior of a specific herbicide in the mixture may be affected by the presence of the other(s), and the activity of the mixture may considerably vary depending on the chemical characters of the herbicides in the mixture, the plant species, the growth stage, and the environmental conditions. Mostly, this practice results in reduced activity of the herbicides in the mixture. [0005] WO 2021/048862 discloses a synergistic herbicidal mixture which comprises aminopyralid and quinmerac, or an ester or salt of any of the foregoing, or a combination thereof, for controlling undesired vegetation. [0006] EP 2 296 480 Bl covers herbicidal compositions comprising aminopyralid and an additional herbicide such as dimethenamid and metazachlor, for controlling undesired vegetation. [0007] There is a need in the art to provide herbicidal mixtures having beneficial properties, e.g., enhanced weed control and reduced application rates. SUMMARY OF INVENTION [0008] In one aspect, the present invention relates to an herbicidal mixture comprising at least two synthetic auxin (auxin mimics) herbicides and at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide. [0009] In certain embodiments, said at least two synthetic auxin herbicides consist of aminopyralid and quinmerac; and said at least one additional herbicide is one additional herbicide selected from metazachlor, dimethenamide, and napropamide. [0010] In another aspect, the present invention relates to a composition comprising a herbicidal mixture comprising at least two synthetic auxin herbicides; at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide; and an agriculturally acceptable carrier. [0011] In certain embodiments, said at least two synthetic auxin herbicides consist of aminopyralid and quinmerac; and said at least one additional herbicide is one additional herbicide selected from metazachlor, dimethenamide, and napropamide. [0012] In a further aspect, the present invention provides a method of controlling weed comprising applying to a locus an effective amount of a composition as defined above. [0013] In yet another aspect, the present invention provides a kit comprising two compositions, wherein either: (i) one of said compositions comprises at least two synthetic auxin herbicides and the second composition comprises at least one additional herbicide, wherein each of said at least one additional herbicide is independently selected from a very long chain fatty acid (VLCFA) synthesis inhibitor and an amide-based herbicide; or (ii) one of said compositions comprises at least one first synthetic auxin herbicide and the second composition comprises at least one second synthetic auxin herbicide together with at least one additional herbicide, wherein each of said at least one additional herbicide is independently selec