Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide

• US 10,499,646 B2
• Filed: 05/08/2014
• Issued: 12/10/2019
• Est. Priority Date: 03/10/2004
• Status: Active Grant

• Current Assignee: Monsanto Technology LLC (Bayer AG)
• Original Assignee: Monsanto Technology LLC (Bayer AG)
• Inventors: Becher, David Z., Agbaje, Henry E., Travers, Jeffrey N., Brinker, Ronald J., Xu, Xiaodong C., Ottens, Timothy S.
• Primary Examiner(s): Pak, John
• Application Number:
  US14/273,025
• Publication Number:
  US 20140364313A1
• Time in Patent Office: 2,042 Days
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/38 having at least one oxygen or sulfur atom attached to an aromatic ring system
• CPC Class Codes: A01N 37/40 having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
• CPC Class Codes: A01N 39/02 Aryloxy-carboxylic acids; Derivatives thereof
• CPC Class Codes: A01N 39/04 Aryloxy-acetic acids; Derivatives thereof
• CPC Class Codes: A01N 43/40 six-membered rings
• CPC Class Codes: A01N 43/42 condensed with carbocyclic rings
• CPC Class Codes: A01N 57/20 containing acyclic or cycloaliphatic radicals

Abstract

Herbicidal compositions are provided which cause rapid symptomology while delivering long term control of regrowth of plants. The herbicidal concentrate compositions comprise N-phosphonomethylglycine or a herbicidal derivative thereof, an auxin herbicide or a herbicidal derivative thereof, and at least one surfactant. Also provided is a method for killing or controlling the growth of certain plants by contacting the foliage of the plants with the diluted concentrate composition.

Claims

1. An herbicidal concentrate composition comprising, in aqueous solution:

(a) glyphosate, in the form of a salt thereof, in a concentration of at least 175 grams acid equivalent per liter;

(b) an auxin herbicide component comprising one or more auxin herbicides selected from the group consisting of 2,4-D, dicamba, and agriculturally acceptable salts or esters thereof; and

(c) a surfactant component comprising one or more surfactants selected from the group consisting of;

(i) quaternary ammonium salts having the formula;

2. The composition of claim 1 wherein the auxin herbicide component comprises dicamba.

3. The composition of claim 1 wherein the auxin herbicide component comprises 2,4-D.

4. The composition of claim 2 wherein the surfactant component comprises an alkylpolyglycoside having the formula:

[R¹⁰¹—

(R¹⁰⁴)_q-(sug)_uOH]_v 

 

(11)

where R¹⁰¹ is hydrogen or C_1-18 hydrocarbyl, R¹⁰⁴ is hydrogen or C_1-4 hydrocarbyl, q is 0 or 1, sug is an open or cyclic structure corresponding to a sugar, u is an average number from 1 to 2, and v is an integer from 1 to 3.

5. The composition of claim 1 wherein the surfactant component comprises a quaternary ammonium salt having the formula:

6. The composition of claim 1 comprising glyphosate in the form of the potassium, isopropylamine, di-ammonium, ammonium, sodium, monoethanolamine, n-propylamine, methylamine, ethylamine, hexamethylenediamine, dimethylamine or trimethylsulfonium salt thereof.

7. The composition of claim 6 comprising glyphosate in the form of the potassium, isopropylamine, or monoethanolamine salt thereof.

8. The composition of claim 7 comprising glyphosate in the form of the potassium salt thereof.

9. The composition of claim 8 wherein the composition comprises glyphosate predominantly in the form of the potassium salt thereof.

10. The composition of claim 7 comprising glyphosate in the form of the isopropylamine salt thereof.

11. The composition of claim 10 wherein the composition comprises glyphosate predominantly in the form of the potassium salt thereof.

12. The composition of claim 7 comprising glyphosate in the form of the monoethanolamine salt thereof.

13. The composition of claim 1 wherein the glyphosate is present in an amount of at least 275 grams acid equivalent per liter.

14. The composition of claim 13 wherein the glyphosate is present in an amount of at least 450 grams acid equivalent per liter.

15. The composition of claim 14 wherein the glyphosate is present in an amount of at least 500 grams acid equivalent per liter.

16. The composition of claim 1 wherein total surfactant present in the composition is in an amount of at least 5 wt. % based on the total weight of the composition.

17. The composition of claim 1 wherein the glyphosate (acid equivalent basis) and the surfactant component are present in a weight ratio of from about 2:

1 to about 6;

1.

18. The composition of claim 1 wherein the composition has a cloud point of at least 60°

C.

19. The composition of claim 1 wherein the composition has a crystallization point not higher than 0°

C.

20. The composition of claim 1 wherein the composition further comprises an organic solvent, said composition containing not more than 10 weight percent of said organic solvent based on the total weight of the composition.

21. A method of killing or controlling weeds or unwanted vegetation comprising:

diluting the composition of claim 1 an amount of water to form an application mixture; and

applying a herbicidally effective amount of the application mixture to foliage of the weeds or unwanted vegetation.

22. The method of claim 21 wherein the weeds or unwanted vegetation comprise Commelina.