Herbicidal compositions comprising 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)-5-fluoropyridine-2-carboxylic acid or a derivative thereof and chlormequat chloride

• US 9,854,800 B2
• Filed: 07/21/2016
• Issued: 01/02/2018
• Est. Priority Date: 07/24/2015
• Status: Active Grant

• Current Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Bangel, Bryston L., Satchivi, Norbert M.
• Primary Examiner(s): Pryor, Alton
• Application Number:
  US15/215,972
• Publication Number:
  US 20170020133A1
• Time in Patent Office: 530 Days
• Field of Search: None
• 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 33/12 Quaternary ammonium compounds
• CPC Class Codes: A01N 43/40 six-membered rings

Abstract

Provided herein are herbicidal compositions comprising (a) 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)-5-fluoropyridine-2-carboxylic acid or an agriculturally acceptable salt or ester thereof and (b) chlormequat chloride and methods of use. The compositions provide control of undesirable vegetation in crops such as cereal crops, like wheat and barley.

Claims

1. A composition for controlling undesirable vegetation, comprising a herbicidally effective amount of (a) a compound of the formula (I)

2. The composition of claim 1, wherein the (a) is a C₁-C₄ alkyl or C₇-C₁₀ arylalkyl ester of the compound of formula (I).

3. The composition of claim 1, wherein the (a) is a benzyl ester of the compound of formula (I).

4. The composition of claim 1, wherein the (a) is the compound of formula (I), which is the carboxylic acid.

5. The composition of claim 1, further comprising a herbicide safener.

6. The composition of claim 1, wherein a weight ratio the (a) to (b) is from 1:

447 to 112;

1.

7. The composition of claim 1, wherein a weight ratio the (a) to (b) is from 1:

112 to 28;

1.

8. The composition of claim 1, further comprising an agriculturally acceptable adjuvant or carrier.

9. A method of controlling undesirable vegetation, comprising contacting the vegetation or applying to soil or water adjacent thereto with a herbicidal composition comprising a herbicidally effective amount of (a) a compound of the formula (I)

10. The method of claim 9, wherein the undesirable vegetation is controlled in cereal crops.

11. The method of claim 10, wherein the cereal crop is wheat or barley.

12. The method of claim 9, wherein the (a) is a C₁-C₄ alkyl or C₇-C₁₀ arylalkyl ester of the compound of formula (I).

13. The method of claim 9, wherein the (a) is a benzyl ester of the compound of formula (I).

14. The method of claim 9, wherein the (a) is the compound of formula (I), which is the carboxylic acid.

15. The method of claim 9, wherein the composition further comprises a safener.

16. The method of claim 9, wherein a weight ratio of the (a) to (b) is from 1:

447 to 112;

1.

17. The method of claim 9, wherein a weight ratio of the (a) to (b) is from 1:

112 to 28;

1.

18. The method of claim 9, further comprising an agriculturally acceptable adjuvant or carrier.

19. The method of claim 9, wherein the undesirable vegetation is controlled in glyphosate-tolerant-, glufosinate-tolerant-, dicamba-tolerant-, phenoxy auxin-tolerant-, pyridyloxy auxin-tolerant-, aryloxyphenoxypropionate-tolerant-, acetyl CoA carboxylase (ACCase) inhibitor-tolerant-, imidazolinone-tolerant-, acetolactate synthase (ALS) inhibitor-tolerant-, 4-hydroxyphenyl-pyruvate dioxygenase (HPPD) inhibitor-tolerant-, protoporphyrinogen oxidase (PPO) inhibitor-tolerant-, triazine-tolerant-, and bromoxynil-tolerant-crops possessing single, multiple or stacked traits conferring tolerance to single or multiple chemistries and/or single or multiple modes of action.