Auxin herbicide mixtures

文档序号：1580263 发布日期：2020-01-31 浏览：27次中文

阅读说明：本技术 植物生长素除草剂混合物 (Auxin herbicide mixtures ) 是由 J·W·赫明豪斯 G·J·克罗普夫 J·T·惠特克于 2018-06-13 设计创作，主要内容包括：本公开涉及了包含植物生长素除草剂盐及佐剂的除草剂混合物、制备此类除草剂混合物的方法,以及施用此类除草剂混合物以杀伤或控制不需要的植物的方法。(The present disclosure relates to herbicide mixtures comprising auxin herbicide salts and adjuvants, methods of making such herbicide mixtures, and methods of applying such herbicide mixtures to kill or control unwanted plants.)

A herbicidal composition comprising:

an auxin herbicide in the form of its salt comprising a th cation;

an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide, and

an adjuvant comprising a second cation selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

Wherein R is¹、R²And R³Each independently is C₃-C₁₂Hydrocarbyl radical, R⁴Is C₁-C₁₂A hydrocarbon radical, and R¹、R²、R³And R⁴The total number of carbon atoms in (a) is at least 13;

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

Wherein R is⁷、R⁸And R⁹Each independently is C₃-C₁₂Hydrocarbyl radical, R¹⁰Is C₁-C₁₂A hydrocarbon radical, and R⁷、R⁸、R⁹And R¹⁰The total number of carbon atoms in (a) is at least 13; and mixtures thereof;

and wherein the composition comprises the auxin herbicide at a concentration of at least 240 grams per liter on an acid equivalent (a.e).

A herbicidal composition comprising:

an th component comprising a th auxin herbicide salt comprising a th cation and a second auxin herbicide salt comprising a second cation, and

an agrochemical component comprising or more agrochemicals that promote volatilization of said auxin herbicide;

wherein the second cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

3. The composition of claim 1 or 2, wherein the second cation comprises a quaternary ammonium cation of formula Ia,

wherein R is¹、R²And R³Each independently is C₃-C₁₂Hydrocarbyl radical, R⁴Is C₁-C₁₂A hydrocarbon radical, and R¹、R²、R³And R⁴The total number of carbon atoms in (a) is at least 13.

4. The composition of any of claims 1-3, wherein the second cation comprises an azacyclo cation of formula IIa,

wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group.

5. The composition of any of claims 1-4, wherein the second cation comprises a phosphonium cation of formula IIIa,

wherein R is⁷、R⁸And R⁹Each independently is C₃-C₁₂Hydrocarbyl radical, R¹⁰Is C₁-C₁₂A hydrocarbon radical, and R⁷、R⁸、R⁹And R¹⁰The total number of carbon atoms in (a) is at least 13.

A herbicidal composition comprising:

an auxin herbicide in the form of a cation-containing salt thereof; and

an agrochemical component comprising one or more agrochemicals that promote volatilization of the auxin herbicide and comprising a source of ammonium ions,

wherein the cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

7. The composition of any of claims 1-6, wherein the agrochemical component comprises a source of ammonium ions.

8. The composition of any of claims 1-7, wherein the agrochemical component comprises an organic amine salt of glyphosate or glufosinate.

9. The composition of any of claims 1-8, wherein the agrochemical component comprises a co-herbicide.

A method of preparing a herbicide concentrate composition comprising an auxin herbicide, wherein the method comprises combining:

an auxin herbicide acid;

a neutralizing base comprising a th cation, and

an adjuvant comprising a hydroxide salt comprising a second cation, wherein the hydroxide salt is selected from the group consisting of:

(a) quaternary ammonium salts of formula I

(b) salts of formula II containing nitrogen heterocycles

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

11, a method of preparing a herbicide tank mix, wherein the method comprises combining:

an auxin herbicide in the form of its salt comprising a th cation;

an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide, and

an adjuvant comprising a hydroxide salt comprising a second cation, wherein the hydroxide salt is selected from the group consisting of:

(a) quaternary ammonium salts of formula I

(b) salts of formula II containing nitrogen heterocycles

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

12, a method of preparing a herbicide tank mix, wherein the method comprises combining:

an auxin herbicide in the form of a cation-containing salt thereof; and

an agrochemical component comprising one or more agrochemicals that promote volatilization of the auxin herbicide and comprising a source of ammonium ions,

wherein the cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

13. The method of claim 11 or 12, wherein the agrochemical component comprises a source of ammonium ions.

14. The method of any of claims 11-13, wherein the agrochemical component comprises ammonium glyphosate.

15. The method of any of claims 11-14, wherein the agrochemical component comprises glufosinate-ammonium.

16. The method of any of claims 11-15, wherein the agrochemical component comprises ammonium sulfate.

17. The method of any of claims 11-16, wherein the agrochemical component comprises an organic amine salt of glyphosate or glufosinate.

18. The method of claim 10 or 11, wherein the adjuvant comprises a quaternary ammonium salt of formula I,

19. The method of claim 10 or 11, wherein the adjuvant comprises a nitrogen heterocycle-containing salt of formula II,

wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group.

20. The method of claim 10 or 11, wherein the adjuvant comprises a phosphonium salt of formula III,

21, a method of preparing a herbicide tank mix, wherein the method comprises combining:

an auxin herbicide in the form of a salt thereof;

an agrochemical component selected from the group consisting of: glufosinate ammonium, glyphosate ammonium, ammonium sulfate and combinations thereof; and

an adjuvant comprising tetrabutylammonium hydroxide, wherein the molar ratio of the auxin herbicide to the tetrabutylammonium hydroxide is about 2:1 to about 10: 1.

22. The method or composition of any of claim 1, 10, 11, or 21, wherein the herbicide mixture or composition comprises an equal or lesser amount of the adjuvant on a molar basis relative to the auxin herbicide.

23. The method or composition of claim 22, wherein the molar ratio of the auxin herbicide to the adjuvant is about 1:1 to about 10:1, about 1:1 to about 5:1, about 1:1 to about 4:1, about 1:1 to about 3:1, or about 1:1 to about 2: 1.

24. The method or composition of claim 22, wherein the molar ratio of the auxin herbicide to the adjuvant is about 2:1 to about 10:1, about 2:1 to about 8:1, about 2:1 to about 5:1, about 2:1 to about 4:1, or about 2:1 to about 3: 1.

25. The method or composition of any of of claims 1, 2, 10, or 11, wherein the th cation is selected from the group consisting of alkali metals, primary amines, and secondary amines.

26. The method or composition of any of of claims 1, 2, 10, 11, or 25, wherein the th cation is selected from the group consisting of sodium, potassium, monoethanol ammonium, diethanol ammonium, isopropyl ammonium, diethylene glycol ammonium, and dimethyl ammonium.

27. The method or composition of claim 26, wherein the th cation is monoethanolammonium.

28. The method or composition of claim 26, wherein the th cation is potassium or sodium.

29. The method or composition of claim 26 wherein the th cation is ammonium diethylene glycol.

30. The method or composition of any of claims , wherein the auxin herbicide is selected from the group consisting of dicamba, 2, 4-dichlorophenoxyacetic acid (2,4-D), 4- (2, 4-dichlorophenoxy) butyric acid (2,4-DB), 2, 4-dichlorprop acid, 2-methyl-4-chlorophenoxyacetic acid (MCPA), 4- (4-chloro-2-methylphenoxy) butyric acid (MCPB), 4-chlorophenoxyacetic acid, 2,4, 5-trichlorophenoxyacetic acid (2,4,5-T), aminopyralid, clopyralid, fluroxypyr, triclopyr, 2-methyl-4-chlorophenoxypropionic acid, picloram, quinclorac, chloropyrimidinic acid, and mixtures thereof.

31. The method or composition of any of claims 1-30, wherein the auxin herbicide comprises dicamba.

32. The method or composition of any of claims 1-31, wherein the auxin herbicide comprises 2, 4-D.

Technical Field

The present disclosure relates to herbicide mixtures comprising an auxin herbicide salt (e.g., a dicamba (dicamba) salt) and an adjuvant, methods of making such herbicide mixtures, and methods of applying such herbicide mixtures to kill or control unwanted plants.

Background

Auxin herbicides such as dicamba have proven effective and highly beneficial for controlling unwanted plants they mimic or act like natural auxin plant growth regulators.

At application conditions, the auxin herbicide may volatilize into the atmosphere and migrate from the site of application to adjacent crop plants or non-target plants where contact damage may occur.

Additionally, a solution that can be used with conventional auxin herbicide formulations (e.g., concentrates) and that can be practiced in the field during the preparation of auxin herbicide-containing herbicide application mixtures (e.g., tank mixes) would be advantageous.

Accordingly, there remains a need for economical, convenient solutions to reduce or control the negative impact on auxin volatility due to the presence of certain types of agrochemicals.

These and/or other benefits may be provided by or more of the herbicide mixtures and methods disclosed herein.

Disclosure of Invention

The present invention relates to herbicide mixtures comprising auxinic herbicide salts (e.g., dicamba salts) and adjuvants, methods of making such herbicide mixtures, and methods of applying such herbicide mixtures to kill or control unwanted plants.

Various aspects of the present invention relate to methods of making a herbicide concentrate composition comprising an auxin herbicide salt (e.g., dicamba), wherein the method comprises combining an auxin herbicide acid (e.g., dicamba acid), a neutralizing base comprising an th cation, and an adjuvant comprising a hydroxide salt comprising a second cation, wherein the hydroxide salt is selected from the group consisting of:

(a) quaternary ammonium salts of formula I

(b) salts of formula II containing nitrogen heterocycles

Wherein A is a 5-or 6-membered heterocyclic ring; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

A further aspect of the present invention relates to a method of preparing a herbicidal tank mix. methods include combinations of an auxinic herbicide (e.g., dicamba) in the form of its salt comprising a th cation, an agrochemical component comprising or more agrochemicals that promote volatilization of the auxinic herbicide, and an adjuvant comprising a hydroxide salt comprising a second cation, wherein the hydroxide salt is as defined above and elsewhere herein, further methods include combinations of an auxinic herbicide in the form of a salt comprising a th cation, an agrochemical component comprising glufosinate ammonium, and an adjuvant comprising a hydroxide salt comprising a second cation, wherein the hydroxide salt is as defined above and elsewhere herein, methods of further steps include combinations of an auxinic herbicide in the form of its salt comprising a th cation, an agrochemical component comprising an agrochemical ammonium, a glyphosate salt comprising a hydroxide salt comprising a second cation, wherein the hydroxide salt comprises a hydrogen peroxide, wherein the methods include combinations of the following 2, , or more than the other methods, wherein the auxinic herbicide comprises the following ammonium hydroxide salts, wherein the combination of the auxinic herbicide comprises the following herbicides in the form of a hydrogen peroxide, wherein the auxinic acid, the salts comprise combinations of the salts of the group , the salts, wherein the salts of the auxinic acid, the salts comprise the salts of the salts defined above, the salts of the herbicides, wherein the salts of the auxinic acid, the salts of the herbicides, the salts of the auxinic acid, the salts of the herbicides, the salts of the herbicides, and the salts of the herbicides, including the herbicides of the salts of the herbicides, including the herbicides of the salts:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

Other aspects of the invention relate to various herbicide compositions the composition comprises an auxin herbicide (e.g., dicamba) in the form of its salt comprising a th cation, an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide, and an adjuvant comprising a second cation selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

Wherein R is⁷、R⁸And R⁹Each independently is C₃-C₁₂Hydrocarbyl radical, R¹⁰Is C₁-C₁₂A hydrocarbon radical, and R⁷、R⁸、R⁹And R¹⁰Has a total number of carbon atoms of at least 13, and mixtures thereof, and wherein the composition comprises an auxin herbicide at a concentration of at least 240 grams per liter on an acid equivalent basis (a.e.) further step comprises a th component comprising a th auxin herbicide salt comprising a th cation and a th auxin herbicide anion (e.g., a th dicamba salt), and a second auxin herbicide salt comprising a second cation and a second auxin herbicide anion (e.g., a second dicamba salt), and an agrochemical component comprising or more auxin herbicide volatilization-promoting agricultural agentsAnother composition comprises an auxin herbicide (e.g., dicamba) in the form of a cation-containing salt thereof, and an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide and a source of ammonium ions, wherein the cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

Aspects of the invention also include other methods, including methods of reducing the occurrence of dislocation movement of an auxin herbicide (e.g., dicamba) after the herbicide mixture comprising the herbicide is applied to foliage of a plant.

Other objects and features will be in part apparent and in part pointed out hereinafter.

Drawings

Fig. 1 shows images of the composition taken after preparation in order to evaluate the physical stability of the composition.

Fig. 2 shows images of the composition taken after preparation in order to evaluate the physical stability of the composition.

Fig. 3 shows an image of the composition taken 3 days after the preparation in order to evaluate the physical stability of the composition.

Fig. 4 shows images of the composition taken 3 days after the preparation in order to evaluate the physical stability of the composition.

Detailed Description

Surprisingly, the methods and compositions described herein can be effective in controlling or reducing the volatility of an auxin herbicide even in the presence of or more compounds that increase the volatility of the auxin herbicide (e.g., ammonium ions).

For example, provided herein is a method of preparing a herbicide mixture, wherein the method comprises combining an auxin herbicide in the form of a salt thereof, an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide, and an adjuvant.

In various embodiments, the adjuvant comprises a hydroxide salt selected from the group consisting of:

(a) quaternary ammonium salts of formula I

(b) salts of formula II containing nitrogen heterocycles

Wherein A is a 5-or 6-membered heterocyclic ring; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group; and

In the quaternary ammonium salts of the formula I, R¹、R²And R³May each be C₃-C₁₂An alkyl or alkenyl group. R⁴May be C₃-C₁₂Hydrocarbyl radicals, e.g. C₃-C₁₂An alkyl or alkenyl group. Alternatively, the first and second electrodes may be,R⁴may be a benzyl group. Preferably, R¹、R²、R³And R⁴Each independently is C₃-C₁₂An alkyl group.

R¹、R²、R³And R⁴The total number of carbon atoms in (a) is at least 13. Preferably, R¹、R²、R³And R⁴The total number of carbon atoms in (a) is at least 14, at least 15, at least 16, at least 17, or at least 18. For example, R¹、R²、R³And R⁴The total number of carbon atoms in (a) may range from 13 to about 30, 13 to about 25, 13 to about 20, or 13 to about 18.

R¹、R²And R³Representative alkyl groups of (a) include propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, deca alkyl, and dodecyl⁴Representative alkyl groups of (A) include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, deca alkyl, and dodecyl¹、R²And R³Preferred alkyl groups of (b) include propyl, butyl, pentyl and hexyl. R⁴Preferred alkyl groups of (a) include methyl, ethyl, propyl, butyl, pentyl and hexyl. In certain embodiments, R⁴Is methyl.

In various embodiments, R¹、R²、R³And R⁴Have the same substituent (e.g., R)¹And R²Each being a butyl group) in some embodiments of , R is¹、R²And R³Each having the same substituent (e.g., R)¹、R²And R³Each being a butyl group). In certain embodiments, R¹、R²、R³And R⁴Each having the same substituent (e.g., R)¹、R²、R³And R⁴Are each butyl)

Preferred materials for the quaternary ammonium salts of formula I include tributylmethylammonium hydroxide and tetrabutylammonium hydroxide.

In the nitrogen heterocycle-containing salts of formula II, ring A is preferably a substituted imidazoleA ring, a substituted pyridine ring, or a substituted pyrrolidine ring. R⁵Preferably C₁-C₁₂An alkyl group. In a preferred embodiment, the salt of formula II is selected from the group consisting of: 1-butyl-1-methyl-pyrrolidinium hydroxide, 1-ethyl-3-methylimidazolium hydroxide, 1-butyl-3-methylimidazolium hydroxide, 1-methyl-3-octylimidazolium hydroxide and cetylpyridinium hydroxide.

In the phosphonium salts of the formula III, R⁷、R⁸And R⁹May each be C₃-C₁₂An alkyl or alkenyl group. R¹⁰May be C₃-C₁₂Hydrocarbyl radicals, e.g. C₃-C₁₂An alkyl or alkenyl group. In other embodiments, R¹⁰Is benzyl. Preferably, R⁷、R⁸、R⁹And R¹⁰Each independently is C₃-C₁₂An alkyl group.

R⁷、R⁸、R⁹And R¹⁰The total number of carbon atoms in (a) is at least 13. Preferably, R⁷、R⁸、R⁹And R¹⁰The total number of carbon atoms in (a) is at least 14, at least 15, at least 16, at least 17, or at least 18. For example, R⁷、R⁸、R⁹And R¹⁰The total number of carbon atoms in (a) may range from 13 to about 30, 13 to about 25, 13 to about 20, or 13 to about 18.

R⁷、R⁸And R⁹Representative alkyl groups of (a) include propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, deca alkyl, and dodecyl¹⁰Representative alkyl groups of (A) include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, deca alkyl, and dodecyl⁷、R⁸And R⁹Preferred alkyl groups of (b) include propyl, butyl, pentyl and hexyl. R¹⁰Preferred alkyl groups of (a) include methyl, ethyl, propyl, butyl, pentyl and hexyl.

Preferred materials for the phosphonium salts of formula III include tributyl methyl phosphonium hydroxide and tetrabutyl phosphonium hydroxide.

Amount of adjuvant

It has been found that in cases, benefits described herein, particularly a reduction in the volatility of the auxin herbicide, can be achieved by the addition of relatively small proportions of adjuvant.

Thus, in a preferred embodiment, the herbicide mixture comprises an equivalent or lesser amount of adjuvant on a molar basis relative to the auxin herbicide. For example, the molar ratio of the auxin herbicide to the adjuvant may be greater than 1:1, such as at least about 1.25:1, at least about 1.5:1, at least about 1.75:1, at least about 2:1, at least about 2.5:1, at least about 3:1, at least about 4:1, or at least about 5: 1.

In embodiments, the molar ratio of the auxin herbicide to the adjuvant is not greater than 20:1, not greater than 10:1, not greater than 8:1, not greater than 6:1, not greater than 5:1, not greater than 4:1, not greater than 3:1, or not greater than 2:1 the molar ratio of the auxin herbicide to the adjuvant may fall within a range as defined by any combination of the minimum and maximum values listed above.

For example, the molar ratio of the auxin herbicide to the adjuvant may be in the range of about 1:1 to about 10:1, about 1:1 to about 5:1, about 1:1 to about 4:1, about 1:1 to about 3:1, or about 1:1 to about 2:1 on a molar basis embodiments the molar ratio of the auxin herbicide to the adjuvant may be in the range of about 2:1 to about 10:1, about 2:1 to about 8:1, about 2:1 to about 5:1, about 2:1 to about 4:1, or about 2:1 to about 3: 1.

Auxin herbicides and salts thereof

Auxinic herbicides include, for example, 3, 6-dichloro-2-methoxybenzoic acid (dicamba), 2, 4-dichlorophenoxyacetic acid (2,4-D), 4- (2, 4-dichlorophenoxy) butyric acid (2,4-DB), 2, 4-dichloroprop (dichloroprop), 2-methyl-4-chlorophenoxyacetic acid (MCPA), 4- (4-chloro-2-methylphenoxy) butyric acid (MCPB), 4-chlorophenoxyacetic acid (2,4,5-T), aminopyralid (amidopyr), clopyralid (clopyralid), fluroxypyr (fluroxypyr), triclopyr (triclopyr), 2-methyl-4-chlorophenoxypropionic acid (mecoprop), picloram (picloram), quinclorac, chloropyrimidinic acid (aminocyclopyralid), and mixtures thereof including, for example, the organic ammonium salts of these herbicides, such as sodium, diethanolamine, and mixtures thereof, including, such as potassium salts of the organic amines known as dimethylamine, diethanolamine, and mixtures thereof.

In embodiments, the auxin herbicide includes 2, 4-d. in various embodiments, the auxin herbicide includes dicamba preferred dicamba salts are selected from the group consisting of diglycolamine salts, monoethanolamine salts, potassium salts, and mixtures thereof for example, the composition may comprise a monoethanolamine salt of dicamba as an example of a further step the composition may comprise a diglycolamine salt of dicamba as an example of a further further step the composition may comprise a potassium salt of dicamba as an example of yet the composition may comprise a sodium salt of dicamba.

Other salts of auxin herbicides include polyamine salts such as those described in U.S. patent application publication 2012/0184434, the entire disclosure of which is incorporated herein by reference for all purposes relevant. Salts described in US 2012/0184434 include anionic insecticides, such as dicamba and other auxin herbicides, and cationic polyamines of formula (a)

Wherein R is¹⁴、R¹⁵、R¹⁷、R¹⁹And R²⁰Independently is H or C₁-C₆-alkyl, optionally substituted with OH, R¹⁶And R¹⁸Independently is C₂-C₄Alkylene, X is OH or NR¹⁹R²⁰And n is 1 to 20; or a cationic polyamine of the formula (B),

wherein R is²¹And R²²Independently is H or C₁-C₆-alkyl, R²³Is C₁-C₁₂-alkylene, and R²⁴Is aliphatic C₅-C₈A ring system containing nitrogen in the ring or interrupted by at least units NR²¹R²²Examples of these cationic polyamines include tetraethylenepentamine, triethylenetetramine, diethylenetriamine, pentamethyldiethylenetriamine, N ', N "-pentamethyl-dipropylenetriamine, N-bis (3-dimethylaminopropyl) -N-isopropanolamine, N ' - (3- (dimethylamino) propyl) -N, N-dimethyl-1, 3-propanediamine, N-bis (3-aminopropyl) methylamine, N- (3-dimethylaminopropyl) -N, N-diisopropanolamine, Ν, Ν ' -trimethylaminoethyl-ethanolamine, aminopropylmonomethylethanolamine, and aminoethylethanolamine.

Agrochemical composition

It has been observed that auxin herbicides such as dicamba can exhibit increased volatility when combined with certain classes of agrochemicals and applied under certain conditions. Agrochemicals that have been observed to promote volatilization of auxin herbicides such as dicamba include, for example, agrochemicals comprising ammonium ions, agrochemicals comprising primary or secondary organic amines, and agrochemicals that act as acidifying agents (for example, by lowering the pH of the composition).

It has been found that the Adjuvants described herein are effective in controlling or reducing the Volatility of auxin herbicides, such as dicamba, even in the presence of such auxin herbicide-promoting agrochemical components as described herein mixtures and compositions described herein may comprise agrochemical components comprising or more agrochemicals that promote the Volatility of auxin herbicides as used herein the ability of agrochemicals to promote the Volatility of auxin herbicides in herbicidal Formulations can be readily determined using techniques known to those skilled in the art including, but not limited to, the humidity control test in the publication A Method to a herbicide salt of formula STP1587, published as "Pesticide Formulation and Delivery Systems:35 through volume, Pesticide Formulations, additives, and Spray Characterization 2014", published as described in detail in the publication 2016 (publication 2016) of humidity control publication.

For example, it is known that mixtures of auxin herbicides (such as dicamba) with components comprising ammonium ions promote volatilization of the auxin herbicide, thereby exacerbating the problems associated with the volatility of the auxin herbicide. Common components of herbicide mixtures containing ammonium ions include, for example, ammonium salts of co-herbicides (e.g., ammonium glyphosate or glufosinate), agricultural additives such as ammonium sulfate and other fertilizers, and inorganic aqueous ammonium conditioners.

Thus, the mixtures and compositions described herein may comprise an agrochemical comprising a source of ammonium ions. It has been found that even in the presence of a catalyst containing ammonium ions (i.e., NH)₄ ⁺Ionic), the adjuvants described herein may also be effective in controlling or reducing the volatility of the auxin herbicide. This represents a significant advantage since a variety of ammonium ion-containing components are commonly used in agriculture and are commonly incorporated into a tank mix containing the herbicide.

Non-limiting examples of ammonium ion-containing agrochemicals that may be present in the auxin herbicide mixtures and compositions described herein include ammonium-containing co-herbicides including, but not limited to, ammonium glyphosate and ammonium glufosinate; and ammonium-containing agricultural additives such as fertilizers and ammonium-containing water conditioners including, but not limited to, ammonium sulfate, ammonium thiosulfate, ammonium oxalate, ammonium nitrate, urea ammonium nitrate, ammonium thiocyanate, ammonium chloride, ammonium phosphate, ammonium isethionate, ammonium lactate, ammonium hydroxide, ammonium bicarbonate, ammonium carbonate, ammonium sulfide and mixtures thereof.

For example, the agrochemical component may comprise a glyphosate or glufosinate salt selected from the group consisting of monoethanolamine, n-propylamine, isopropylamine, ethylamine, dimethylamine, ethylenediamine, hexamethylenediamine, and trimethylsulfonium salts, and mixtures thereof.

Non-limiting examples of agrochemicals acting as acidulants include alkali metal salts of glyphosate and glufosinate, such as potassium glyphosate, sodium glyphosate, potassium glufosinate and sodium glufosinate, polycarboxylic acids and hydroxy acids, such as citric acid, gluconic acid, oxalic acid, malonic acid, succinic acid, malic acid, tartaric acid, fumaric acid, maleic acid, glutaric acid, dimethylglutaric acid, adipic acid, trimethyladipic acid, pimelic acid, tartaric acid, suberic acid, azelaic acid, sebacic acid, 1, 12-dodecanedioic acid, 1, 13-tridecanedioic acid, glutamic acid, phthalic acid, isophthalic acid, lactic acid, terephthalic acid or anhydrides, esters, amides, halides, salts or precursors of any of these acids, and fatty acids or their agronomically acceptable salts, especially C₈To C₁₂Saturated straight or branched chain fatty acids (e.g., water soluble, agronomically acceptable salts of pelargonic acid).

Depending on the particular agrochemical (e.g., herbicidal ammonium salt or water conditioner), the concentration in the herbicide mixture or composition may vary significantly. The concentration of the agrochemical component in the herbicide mixture is typically at least about 0.01 wt.%, at least about 0.1 wt.%, at least about 1 wt.%, or at least about 5 wt.%.

In embodiments, the molar ratio of ammonium ions and/or primary or secondary organic amines in the herbicide mixture or composition to the auxinic herbicide is at least about 0.01:1, at least about 0.05:1, at least about 0.1:1, at least about 0.2:1, at least about 0.3:1, at least about 0.4:1, at least about 0.5:1, at least about 0.6:1, at least about 0.7:1, at least about 0.8:1, at least about 0.9:1, at least about 1:1, at least about 1.5:1, or at least about 2:1 in embodiments, the molar ratio of ammonium ions in the herbicide mixture or composition to the auxinic herbicide is no greater than 100:1, no greater than 50:1, no greater than 40:1, no greater than 30:1, no greater than 20:1, no greater than 10:1, or no greater than 5:1 in any combination of the above defined molar ratios of ammonium ions in any combination.

Auxiliary herbicide

In embodiments, the co-herbicide is an agrochemical that promotes volatilization of an auxin herbicide (such as dicamba) as described herein.

Co-herbicides include, for example, or more additional auxinic herbicides, acetyl CoA carboxylase (ACCase) inhibitors, acetolactate synthase (ALS) or acetohydroxyacid synthase (AHAS) inhibitors, photosystem II inhibitors, photosystem I inhibitors, protoporphyrinogen oxidase (PPO or Protox) inhibitors, carotenoid biosynthesis inhibitors, enolpyruvylshikimate-3-phosphate (EPSP) synthase inhibitors, glutamine synthase inhibitors, dihydropteroate synthase inhibitors, mitosis inhibitors, 4-hydroxyphenyl-pyruvate-dioxygenase (4-HPPD) inhibitors, auxin transport inhibitors, nucleic acid inhibitors, agriculturally acceptable salts, esters, and other derivatives of these herbicides, racemic mixtures and resolved isomers thereof, and combinations thereof.

Specific examples of suitable co-herbicides include acetochlor (acetochlor); acifluorfen (acifluorfen); alachlor (alachlor); atrazine (atrazine); azafenidin (azafenidin); bifenox (bifenox); butachlor (butachlor); butafenacil (butafenacil); carfentrazone-ethyl (carfentrazone-ethyl); dacron (diuron); dithiopyr (dithiopyr); flufenpyr-ethyl (flufenpyr-ethyl); fluoroeneoxalic acid (flumiclorac-type); flumioxazin (flumioxazin); fluoroglycofen (fluoroglycofen); oxadiazine methyl ester (fluthiacet-methyl); fomesafen (fomesafen), N- (phosphonomethyl) glycine (glyphosate); DL-phosphinothricin (DL-phosphinothricin) (glufosinate); imazethapyr (imazethapyr); lactofen (lactofen); metazochlorir (metazochlorir); metolachlor (metolachlor) (and S-metolachlor)); metribuzin (metribuzin); oxadiargyl (oxadiargyl); oxadiazon (oxadizon); oxyfluorfen (oxyfluorfen); pretilachlor (pretilachlor); propachlor; propisochlor (propiochlor); pyraflufen-ethyl (pyraflufen-ethyl); sulfentrazone (sulfentrazone); thiophenamine (thienylchloride); and their agriculturally acceptable salts, esters and other derivatives; racemic mixtures and resolved isomers thereof, and combinations thereof.

In embodiments, the co-herbicide is a photosystem II inhibitor selected from, for example, ametryn (ametryn), amicarbazone (amicarbazone), atrazine, bentazon (bentazon), bromacil (bromoacil), chlortoluron (chlorotoluron), cyanazine (cyanazine), desmediphazone (desmethyn), oxazon (desmethron), difenoron (difenoron), dacron (fluometron), flumuron (flumeturon), hexazinone (hexazinone), ioxynil (ioxynil), isoproturon (isoproturon), linuron (lignuron), metamitron (metamitron), metribuzin (pyriron), metribuzin (pyributrione), pyributrione (pyributrione), pyributetryn (pyributrione), pyributrione (pyributrione), pyributrione (pyributron), pyributrione (pyributron), pyributron (pyributron), pyributrione (pyributron), pyributron (pyributron), pyributron (pyributron), pyributron (pyributron), pyributron (pyributron.

In some the co-herbicide is a grass herbicide (graminide) selected from the group consisting of cyclobutylone (butroxydim), clethodim (clethodim), cycloxydim (cyclooxydim), sixydim (sethoxydim), texaloxydim (teploxydim), tralkoxydim (tralkoxydim), cycloxydim (profloxydim), haloxyfop (haloxyfop), propaquizafop (propaquizafop), and clodinafop (clodinafop) C_1-4Alkyl esters and propargyl esters, cyhalofop (cyhalofop), diclofop (diclofop), fenoxaprop (fenoxaprop), fluazifop (fluazifop-P), haloxyfop (quizalofop), quizalofop (quizalofop) and quizalofop (quizalofop-P) (e.g., quizalofop ethyl (quizalofop-ethyl) or quizalofop-P-ethyl), clodinafop (clofafop-propryl), cyhalofop-butyl (cyhalofop-butyl), halofop-methyl (diflorop-methyl), fenoxaprop-P-ethyl (fluazifop-P-ethyl), fluazifop (fluazifop-P-methyl), halofop (halofop-P-methyl), haloxyfop (R-chloro-R-methyl ester.

some preferred co-herbicides include, for example, N- (phosphonomethyl) glycine (glyphosate), DL-phosphinothricin (glufosinate), atrazine, acetochlor, fomesafen, flumioxazin, lactofen, sulfentrazone, metribuzin, clethodim, imazamox, metolachlor, alachlor, fenoxaprop, fluazifop-p-ethyl, haloxyfop-methyl, balanopyr (paraquat), tralkoxydim (trialkoxydim), agriculturally acceptable salts or other derivatives of any of these herbicides, and mixtures thereof.

In some embodiments the co-herbicide comprises an additional auxin herbicide as described herein the auxin herbicide comprises dicamba, 2,4-D, 2,4-DB, 2,4-D, MCPA, MCPB, 4-chlorophenoxyacetic acid, 2,4,5-T, aminopyralid, clopyralid, fluroxypyr, triclopyr, 2-methyl-4-chlorophenoxypropionic acid, picloram, quinclorac, chloropyrimidinic acid, and mixtures thereof.

It has been observed that in some cases at , the volatility of an auxinic herbicide, such as dicamba, increases when used in admixture with a co-herbicide, particularly one that is more acidic in solution (i.e., has the potential to donate free protons) than an auxinic herbicide.

In embodiments, the co-herbicide comprises or more glyphosate salts including membered, binary or ternary salts and including ammonium (e.g., ammonium, diammonium, or triammonium) salts, alkali metal (e.g., potassium or sodium) salts, sulfonium (e.g., methyl sulfonium, dimethyl sulfonium, or trimethyl sulfonium) salts, and organic ammonium salts commonly referred to as amine salts, which may comprise aliphatic or aromatic amine salts, and may comprise primary, secondary, tertiary, or quaternary ammonium salts representative non-limiting examples of such organic amine salts include isopropylamine, n-propylamine, ethylamine, dimethylamine, monoethanolamine, ethylenediamine, and hexamethylenediamine salts of glyphosate, thus, in embodiments, the glyphosate salt is selected from the group consisting of potassium salts, ammonium salts, diammonium salts, sodium salts, monoethanolamine salts, n-propylamine salts, isopropylamine salts, ethylamine salts, dimethylamine salts, ethylenediamine salts, hexamethylenediamine salts, trimethylsulfonium salts, and mixtures thereof (e.g., potassium salts, monoethanolamine salts, isopropylamine salts, and mixtures thereof), e.g., in embodiments, comprising the co-herbicide.

Thus, in some embodiments , the co-herbicide comprises a glyphosate salt comprising an alkali metal salt (e.g., a potassium and/or sodium salt). in some embodiments , the co-herbicide comprises glyphosate in the form of a potassium salt.

A monocarboxylic acid or salt thereof

The herbicide mixtures or compositions described herein may further comprise other additives to control or reduce the volatility of potential pesticides, including auxin herbicides, for example, as described in U.S. patent application publication Nos. US 2014/0128264 and US 2015/0264924, which are incorporated herein by reference, additives for controlling or reducing the volatility of potential pesticides include -membered carboxylic acids or salts thereof (e.g., acetic acid and/or agriculturally acceptable salts thereof), representative -membered carboxylic acids and -membered carboxylic acid salts , comprising hydrocarbons or unsubstituted hydrocarbons selected from, for example, unsubstituted or substituted straight or branched chain alkyl groups (e.g., C.C.₁-C₂₀Alkyl groups such as methyl, ethyl, n-propyl, isopropyl, and the like); unsubstituted or substituted straight-chain or branched alkenyl (e.g. C)₂-C₂₀Alkyl groups such as vinyl, n-propenyl, isopropenyl, and the like), unsubstituted or substituted aryl groups (such as phenyl, hydroxyphenyl, and the like), or unsubstituted or substituted aralkyl groups (e.g., benzyl).

The molar ratio of pesticide (e.g., auxin herbicide) to carboxylic acid or carboxylate thereof is typically from about 1:10 to about 10:1, from about 1:5 to about 5:1, from about 3:1 to about 1:3, or from about 2:1 to about 1:2 (e.g., about 1: 1).

In various herbicide concentrate compositions of the present invention, the concentration of carboxylic acid and/or salt thereof can be from about 0.25% to about 25%, from about 1% to about 20%, from about 2% to about 15%, from about 2% to about 10%, or from about 5% to about 15%, by weight of the concentrate composition.

Surface active agent

The herbicide composition or mixture may further include or more surfactants to enhance the herbicidal effect of the auxin herbicide and/or optional co-herbicide the herbicide mixture may include a surfactant to facilitate retention, uptake and transfer of the herbicide to the plant foliage to enhance the herbicidal effect the weight ratio of total herbicide to surfactant (a.e.) is generally in the range of about 1:1 to about 20:1, about 2:1 to about 10:1, or about 3:1 to about 8: 1.

or all of the surfactants can also be incorporated from the separate surfactant composition, the auxinic herbicide concentrate or a dilution thereof, and/or the co-herbicide concentrate or a dilution thereof (when a co-herbicide is added).

Known surfactants useful in the present invention include alkoxylated tertiary ether amines, alkoxylated quaternary ether amines, alkoxylated ether amine oxides, alkoxylated tertiary amines, alkoxylated quaternary amines, alkoxylated polyamines, sulfates, sulfonates, phosphate esters, alkylpolysaccharides, alkoxylated alcohols, amidoalkylamines, and combinations thereof.

Examples of alkoxylated tertiary ether amine surfactants include of any of the TOMAH E series surfactants, such as TOMAH E-14-2 (bis- (2-hydroxyethyl) isodecyloxypropylamine), TOMAH E-14-5 (poly (5) oxyethylene isodecyloxypropylamine), TOMAH E-17-2, TOMAH E-17-5 (poly (5) oxyethylene isotridecyloxypropylamine), TOMAH E-19-2, TOMAHE-18-2, TOMAH E-18-5 (poly (5) oxyethylene octadecylamine), TOMAH E-18-15, TOMAH E-19-2 (bis- (2-hydroxyethyl) linear alkoxypropylamine), TOMAH E-S-2, TOMAH E-S-15, TOMAH E-T-2 (bis- (2-hydroxyethyl) tallow amine), TOMAH E-T-5 (poly (5) oxy ethylene tallow amine), TOMAH E-S-15, TOMAH-E-15-5, TOMAH-E-Q, TOMAH-17, TOMAH-E-17-5, TOMAH-E-5, TOMAH-5, TOMAH-Q, TOMAH-5, TOMAH-Q, and mixtures thereof, including, and mixtures of the specified surfactants, including TOMAH-Q, TOMAH-17, and mixtures thereof, including TOMAH-E-17-Q, and others, all of the same, including the aforementioned surfactants, and.

Examples of alkoxylated ether amine oxide surfactants include any of the TOMAH AO series of surfactants, such as TOMAH AO-14-2, TOMAH AO-728, TOMAH AO-17-7, TOMAH AO-405, and TOMAH AO-455, all available from Air Products and Chemicals, Inc. alkoxylated tertiary amine oxide surfactants include, for example, any of the AROMOX series of surfactants, including AROMOX C/12, AROMOX C/12W, AROMOX DM16, AROMOX DMHT, and AROMOX T/12DEG, all available from Akzo Nobel.

Alkoxylated tertiary amine surfactants include, for example, ETHOMEEN T/12, ETHOMEEN T/20, ETHOMEEN/25, ETHOMEEN T/30, ETHOMEEN T/60, ETHOMEEN C/12, ETHOMEEN C/15, and ETHOMEEN C/25, all of which are available from Akzo Nobel. Alkoxylated quaternary amine surfactants include, for example, ETHOQUAD T/12, ETHOQUAD T/20, ETHOQUAD T/25, ETHOQUAD C/12, ETHOQUAD C/15, and ETHOQUAD C/25, all of which are available from Akzo Nobel.

Alkoxylated polyamine surfactants include, for example, ethoxylates of ADOGEN 560 (N-cocopropylenediamine) having an average of from 2EO to 20EO (e.g., 4.8, 10, or 13.4 EO); ethoxylates of ADOGEN 570 (N-tallow propylene diamine) containing an average of 2EO to 20EO (e.g., 13 EO); and ethoxylates of ADOGEN 670 (N-tallow propylene triamine) having an average of from 3EO to 20EO (e.g., 14.9EO), all available from Witco corp. Other polyamine surfactants useful in the present invention include Triamine C, Triamine OV, Triamine T, Triamine YT, Triameen Y12D, Triameen Y12D-30, Tetrameeen OV, Tetrameeen T3, all of which are available from Akzo Nobel.

Sulfate surfactants include, for example, sodium ethoxylated nonylphenol sulfate (4EO), sodium ethoxylated nonylphenol sulfate (10EO), WITCOLATE 1247H, WITCOLATE 7093, WITCOLATE 7259, WITCOLATE 1276, WITCOLATE LES-60A, WITCOLATE LES-60C, WITCOLATE1050, WITCOLATE WAQ, WITCOLATE D-51-51, and WITCOLATE D-51-53, all available from Witco Corp. Sulfonate surfactants include, for example, WITCONATE 93S, WITCONATE NAS-8, WITCONATE AOS, WITCONATE 60T, and WITCONATE 605, all available from Witco Corp.

Phosphate esters of alkoxylated alcohol surfactants include, for example, EMPHOS CS-121, EMPHOS PS-400, and WITCONATE D-51-29, which are available from Witco Corp. Other examples include the PHOSPHOLAN series of surfactants, available from Akzo Nobel.

Alkyl polysaccharide surfactants are also a class of suitable surfactants examples of alkyl polysaccharide surfactants include Alkyl Polyglucoside (APG) surfactants such as AGNIQUE PG8107-G (AGRIMUL PG 2067), which is available from BASF other representative alkyl polysaccharide surfactants include APG 225, APG 325, APG 425, APG 625, GLUCOPON600, PLANTAREN 600, PLANTAREN, PLANTAREN 1300, PLANTAREN 2000, AGRIMUL PG 2076, AGRIMUL PG 2067, AGRIMUL PG 2072, AGRIMUL PG 2069, AGRIMUL PG 2062, AGRIMUL PG2065 and BEROL AG 6202.

Alkoxylated alcohol surfactants include, for example, EMULGIN L, PROCOL LA-15 (from Protameen); and BRIJ 35, BRIJ 56, BRIJ 76, BRIJ 78, BRIJ 97, BRIJ 98 (from sigmal Co.); NEODOL 25-12 and NEODOL 45-13 (from Shell); HETOXOL CA-10, HETOXOL CA-20, HETOXOL CS-9, HETOXOL CS-15, HETOXOL CS-20, HETOXOL CS-25, HETOXOL CS-30, PLURAFAC A38, and PLURAFAC LF700 (from BASF); ST-8303 (from Cognis); AROSURF66E10 and AROSURF66E 20 (from Witco/Crompton); ethoxylated (9.4EO) tallow, propoxylated (4.4EO) tallow, and alkoxylated (5-16EO and 2-5PO) tallow (from Witco/Crompton). Other examples are SURFONIC NP95 and SURFONIC LF-X series from Huntsman chemical co and TERGITOL series from Dow.

In cases or more amidoalkylamine surfactants may be included to enhance the stability of the herbicide composition or mixture examples of APA surfactants include ARMEEN APA 2, ARMEEN APA 6, ARMEENAPA 8, ARMEEN APA10, ARMEEN APA 12, ACAR 7051, ACAR 7059, and ADSEE C80W (Akzo Nobel).

Component (c) of step

Accordingly, the herbicide composition or mixture can further comprise one or more additional ingredients , said one or more additional ingredients selected from, but not limited to, foam modulators, preservatives or antimicrobials, antifreezes, solubility enhancers, dyes, and thickeners.

Suitable drift control agents for use IN the practice of the present invention are known to those skilled IN the art and include GARDIAN, GARDIAN PLUS, DRI-GARD and PRO-ONE, available from Van Diest supply Co., COMPADRE, available from Loveland Products, Inc., BRONAX CMEDT, BRONC PLUS DRY EDT, EDT CONCENTRATE and IN-PLACE, available from Wilbur-Ellis company, STRIKE ZONEDF, available from Helena Chemical Co., INTACT and INTACTRA, available from Precision Laboratories, LLC, and AGO DR 2000 and AGO DEP 775, available from Solvay Grp suitable drift control agents include, for example, guar (guar) based (e.g., guar gum containing guar gum) or various combinations of drift control agents or drift control agents containing guar gum .

Compositions comprising an auxin herbicide and a hydroxide salt adjuvant

As noted above, the herbicide mixtures described herein are effective in controlling or reducing the volatility of an auxin herbicide (such as dicamba) even in the presence of a component comprising or more agrochemicals that promote the volatility of the auxin herbicide.

Accordingly, provided herein are herbicide compositions comprising an auxin herbicide (e.g., dicamba) in the form of its salt comprising a th cation, an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide, and an adjuvant comprising a cation selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

In the ammonium cation of the formula Ia, R¹、R²、R³And R⁴May each be as hereinbefore described for R in formula I¹、R²、R³And R⁴The selection is made as described. In the azacyclo cation of the formula IIa, R⁵、R⁶And A may each be as above for R in formula II⁵、R⁶And a as described. In the ammonium cation of formula IIIa, R⁷、R⁸、R⁹And R¹⁰Each as hereinbefore described for R in formula III⁷、R⁸、R⁹And R¹⁰The selection is made as described.

Preferred materials for the quaternary ammonium cation of formula Ia include tributylmethylammonium and tetrabutylammonium.

Preferred substances of the azacyclo cation of the formula IIa include 1-butyl-1-methyl-pyrrolidinium, 1-ethyl-3-methylimidazolium, 1-butyl-3-methylimidazolium, 1-methyl-3-octylimidazolium and cetylpyridinium.

Preferred materials for the phosphonium cation of formula IIIa include tributylmethylphosphonium and tetrabutylphosphonium.

For example, provided herein are herbicide compositions comprising an auxin herbicide in the form of its salt comprising a cation, an agrochemical component comprising ammonium glyphosate, and an adjuvant comprising a cation as described above.

Also provided herein are herbicide compositions comprising an auxin herbicide in the form of its salt comprising a cation, an agrochemical component comprising glufosinate ammonium, and an adjuvant comprising a cation as described above.

Also provided herein are herbicide compositions comprising an auxin herbicide in the form of its salt comprising a cation, an agrochemical component comprising ammonium sulfate and an adjuvant comprising a cation as described above.

In embodiments, the composition is an herbicide concentrate as described herein and comprises an auxin herbicide at a concentration of at least 50 grams per liter on an acid equivalent (a.e.) in other embodiments, the composition is an herbicide application mixture suitable for application to unwanted plants.

The herbicidal composition may be prepared, for example, by the methods as described above.

For example, the agrochemical component may comprise or more co-herbicides, surfactants, agrochemicals (e.g., ammonium ions) that promote volatilization of the auxin herbicide, or further steps as detailed above.

The herbicidal composition preferably comprises a cationic adjuvant in an equal or lesser amount on a molar basis relative to the auxin herbicide, and the molar ratio of auxin herbicide to cationic adjuvant may be selected as described above.

Also provided herein are herbicide compositions comprising an auxin herbicide (e.g., dicamba) in the form of a salt thereof comprising a cation, and an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide and comprising a source of ammonium ions as described herein, wherein the cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

Wherein R is⁷、R⁸And R⁹Each independently is C₃-C₁₂Hydrocarbyl radical, R¹⁰Is C₁-C₁₂A hydrocarbon radical, and R⁷、R⁸、R⁹And R¹⁰Wherein the total number of carbon atoms is at least 13, and mixtures thereof the herbicide composition may comprise or more agrochemical components as detailed above.

Concentration of herbicide

The herbicide compositions described herein may be in the form of a herbicide concentrate and may comprise an auxin herbicide at a concentration of at least about 50 grams per liter on an acid equivalent (a.e.). For example, the composition or mixture may comprise an auxin herbicide (e.g., dicamba) at the following concentrations: at least about 75 grams a.e./liter, at least about 100 grams a.e./liter, at least about 120 grams a.e./liter, at least about 140 grams a.e./liter, at least about 160 grams a.e./liter, at least about 180 grams a.e./liter, at least about 200 grams a.e./liter, at least about 220 grams a.e./liter, at least about 240 grams a.e./liter, at least about 280 grams a.e./liter, at least about 300 grams a.e./liter, at least about 320 grams a.e./liter, at least about 360 grams a.e./liter, at least about 400 grams a.e./liter, at least about 420 grams a.e./liter, at least about 450 grams a.e./liter, or at least about 500 grams a.e./liter.

The herbicide compositions described herein can be in the form of an aqueous herbicide concentrate. Alternatively, the herbicidal compositions described herein may be in the form of a solid herbicide concentrate.

When the herbicide composition is in the form of an herbicide concentrate comprising a co-herbicide, the total herbicide concentration may be at least about 240 grams per liter on an acid equivalent (a.e.). For example, the total herbicide concentration may be at least about 280 grams a.e./liter, at least about 300 grams a.e./liter, at least about 320 grams a.e./liter, at least about 360 grams a.e./liter, at least about 400 grams a.e./liter, at least about 420 grams a.e./liter, at least about 450 grams a.e./liter, or at least about 500 grams a.e./liter.

Alternatively, the herbicide compositions described herein may be in the form of an application mixture and may comprise an auxinic herbicide (e.g., dicamba) at the following concentrations: from about 0.25 wt.% a.e. to about 6 wt.% a.e., from about 0.25 wt.% a.e. to about 4 wt.% a.e., or from about 0.5 wt.% a.e. to about 2 wt.% a.e. In these embodiments, the concentration of the optional co-herbicide is typically from about 0.5 wt.% a.e. to about 8 wt.% a.e., from about 1 wt.% a.e. to about 6 wt.% a.e., or from about 1 wt.% a.e. to about 4 wt.% a.e.

The herbicide compositions and mixtures described herein generally include a relatively equivalent ratio or excess of the co-herbicide, when present, in acid equivalent terms relative to the auxin herbicide.for example, the acid equivalent weight ratio of the co-herbicide to the auxin herbicide can be in the range of about 1:1 to about 5:1, about 1:1 to about 3:1, about 1.5:1 to about 2.5:1, or about 1.5:1 to about 2: 1.in embodiments, the acid equivalent weight ratio of the co-herbicide to the auxin herbicide (e.g., dicamba) is about 1.5:1, about 2:1, or about 3: 1.

Process for preparing herbicide concentrate compositions

As noted, the present invention also provides a method of making the herbicide concentrate compositions described herein.

For example, provided herein are methods of making a herbicide concentrate composition comprising an auxin herbicide (e.g., dicamba), wherein the method comprises combining an auxin herbicide acid (e.g., dicamba acid), a neutralizing base comprising a th cation, and an adjuvant comprising a hydroxide salt comprising a second cation.

The herbicide concentrate composition can comprise an auxin herbicide at a concentration as described herein (e.g., a concentration of at least about 50 grams a.e./liter).

The cation may be selected as generally described above at such that the reaction of the auxin herbicide acid with the neutralizing base produces an auxin herbicide salt as described above non-limiting examples of suitable cations include sodium, potassium, monoethanol ammonium, diethanol ammonium, isopropyl ammonium, diethylene glycol ammonium, and dimethyl ammonium for example the cation may be monoethanol ammonium or the cation may be potassium as an example for the further step the cation may be dimethyl ammonium as an example for the further step the cation may be diethylene glycol ammonium.

One skilled in the art can select a suitable neutralizing base comprising the th cation non-limiting examples of suitable neutralizing bases include hydroxides and halide salts comprising the th cation.

The neutralizing base may be added in an amount sufficient to neutralize all or only portions of the auxin herbicide acid, for example, the neutralizing base may be added in an amount sufficient to neutralize at least about 5%, at least about 10%, at least about 20%, at least about 30%, at least about 40%, at least about 50%, at least about 60%, at least about 70%, at least about 80%, at least about 90%, or at least about 95% of the auxin herbicide acid on a molar basis.

For example, the auxinic herbicide acid may be first combined with the neutralizing base at followed by the adjuvant at or the auxinic herbicide acid may be first combined with the adjuvant at followed by the neutralizing base at .

For example, the agrochemical component can comprise or more co-herbicides, surfactants, agrochemicals (e.g., ammonium ions) that promote volatilization of the auxin herbicide, or step components as detailed above.

Method for producing herbicide application mixtures

In various embodiments, the methods include combining an auxin herbicide, an agrochemical component, and an adjuvant as described herein in a liquid medium (such as water). in various embodiments, or more surfactants are included in the herbicide mixture.

Also provided herein are methods of making a herbicide potting compound, wherein the method comprises combining together an auxin herbicide in the form of its salt comprising a cation, and an agrochemical component comprising or more agrochemicals that promote volatilization of the auxin herbicide and comprising a source of ammonium ions as described herein, wherein the cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

Wherein A is a 5-or 6-membered heterocycle; r⁵Is C₁-C₂₀An alkyl group; r⁶Is hydrogen or C₁-C₆An alkyl group;

Compositions comprising mixed auxin herbicide salts

Also provided herein are herbicide compositions comprising a th auxin herbicide salt comprising a th cation (e.g., a th dicamba salt), and a second auxin herbicide salt comprising a second cation (e.g., a second dicamba salt), and a further step component comprising an ammonium ion, wherein the second cation is selected from the group consisting of:

(a) a quaternary ammonium cation of formula Ia

(b) azacyclo cation of formula IIa

An alkyl group; wherein A is a 5-or 6-membered heterocycle; r⁵Is C¹-C²⁰An alkyl group; r⁶Is hydrogen or C¹-C⁶

Wherein R is⁷、R⁸And R⁹Each independently is C₃-C₁₂Hydrocarbyl radical, R¹⁰Is C₁-C₁₂A hydrocarbon radical, and R⁷、R⁸、R⁹And R¹⁰The total number of carbon atoms in (b) is at least 13 in embodiments, the cation may result at least in part from the reaction of an auxinic herbicide acid with a base (e.g., an adjuvant comprising a hydroxide salt).

In embodiments, the composition comprises an auxin herbicide at a concentration of at least 240 grams per liter on an acid equivalent (a.e.).

In the ammonium cation of the formula Ia, R¹、R²、R³And R⁴May each be as hereinbefore described for R in formula I¹、R²、R³And R⁴The selection is made as described. In the azacyclo cation of the formula IIa, R⁵、R⁶And A may each be as above for R in formula II⁵、R⁶And a as described. In the ammonium cation of formula IIIa, R⁷、R⁸、R⁹And R¹⁰May each be as hereinbefore described for R in formula III⁷、R⁸、R⁹And R¹⁰The selection is made as described.

Preferred materials for the quaternary ammonium cation of formula Ia include tributylmethylammonium and tetrabutylammonium.

Preferred substances of nitrogen heterocycles of the formula IIa include 1-butyl-1-methylpyrrolidinium, 1-ethyl-3-methylimidazolium, 1-butyl-3-methylimidazolium, 1-methyl-3-octylimidazolium and cetylpyridinium.

Preferred materials for the phosphonium cation of formula IIIa include tributylmethylphosphonium and tetrabutylphosphonium.

In a preferred embodiment, the second auxin herbicide salt is selected from the group consisting of tributylmethylammonium, tetrabutylammonium, tributylmethylphosphonium and tetrabutylphosphonium.

the second auxin herbicide salt may comprise any agriculturally acceptable salt known in the art, including those auxin salts discussed above with respect to the methods of preparing the herbicide mixture.

In preferred embodiments, the second cation is tetrabutylammonium and the th cation is selected from the group consisting of potassium, sodium, monoethanolamine, and diglycolamine for example, in embodiments, the second cation is tetrabutylammonium and the th cation is potassium or sodium in other embodiments, the second cation is tetrabutylammonium and the th cation is diglycolamine.

The herbicidal composition may comprise or more co-herbicides, surfactants, ammonium ion containing components or the further steps detailed above.

In embodiments, the herbicide composition includes an equal or lesser proportion of the second cation on a molar basis than the cation more preferably, the herbicide composition includes a relatively equal proportion of the second cation on a molar basis relative to the cation for example, the molar ratio of the second cation to the cation can be in the range of about 1:10 to about 10:1, about 1:4 to about 4:1, about 1:3 to about 3:1, or about 1:2 to about 2:1 in embodiments the molar ratio of the second cation to the cation is about 1: 1.

Application method

Thus, there are provided methods of reducing off-site shifting of an auxin herbicide (e.g., dicamba) after application of the herbicide mixture, the method comprising applying to the foliage of or more plants a herbicide mixture comprising an auxin herbicide (e.g., dicamba) and an adjuvant comprising or more salts of formulae I, II and III as described previously.

The time period required to achieve commercially acceptable weed control rates can be as short as weeks, or as long as three weeks, four weeks, or 30 days, depending on the plant species and growth conditions.

For example, an application mixture comprising dicamba salt as described herein would be particularly suitable for application to leaves of dicamba-sensitive plants growing in and/or near a field of crop plants comprising transgenic crop plants having a dicamba tolerance trait further an application mixture comprising dicamba and a co-herbicide comprising glyphosate or glufosinate (or a salt thereof) as described herein would be particularly suitable for application to leaves of auxin-sensitive plants and plants sensitive to said co-herbicide growing in and/or near a field of crop plants comprising transgenic crop plants having a stacked dicamba tolerance trait and a glyphosate or glufosinate tolerance trait, respectively.

The application mixture as described herein may be applied prior to planting of the crop plants, such as from about 2 weeks to about 3 weeks prior to planting of the auxin sensitive crop plants or the crop plants that do not have the auxin herbicide tolerance trait. Crop plants that are not auxin herbicide sensitive (such as corn) or plants with auxin-tolerant and co-herbicide tolerant traits are generally free of pre-planting limitations. The application mixture can be applied to such crop plants immediately prior to planting such crops, at the time of planting, or post-emergence to control auxin-and co-herbicide-sensitive weeds in a field of crop plants.

58页详细技术资料下载

上一篇：一种医用注射器针头装配设备

下一篇：杀真菌组合物

Auxin herbicide mixtures

相关技术

网友询问留言