Safening composition of 6-(trisubstituded phenyl)-4-amino-2-pyridinecarboxylate herbicides and cloquintocet-mexyl for cereal crops

• US 9,040,458 B2
• Filed: 12/12/2013
• Issued: 05/26/2015
• Est. Priority Date: 11/24/2008
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Satchivi, Norbert M., Schmitzer, Paul R.
• Primary Examiner(s): Pryor, Alton
• Application Number:
  US14/104,651
• Publication Number:
  US 20140100109A1
• Time in Patent Office: 530 Days
• US Class Current: 504/105
• CPC Class Codes: A01N 25/32 Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
• CPC Class Codes: A01N 43/40 six-membered rings

Abstract

Herbicidal injury caused by 6-trisubstituted phenyl)-4-amino-2-pyridinecarboxylates in wheat and barley is reduced with the use of low rates of cloquintocet.

Claims

1. A composition for protecting wheat and barley from injury caused by a 6-(trisubstituted phenyl)-4-amino-2-pyridine-carboxylate herbicide of the formula (I)

2. The composition of claim 1 in which the 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide is a 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)-2-pyridinecarboxylic acid derivative or a 4-amino-3-chloro-6-(2,4-dichloro-3-methoxy-phenyl)-2-pyridinecarboxylic acid derivative.

3. The composition of claim 1 in which the weight ratio of the 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide to cloquintocet acid is from 4:

1 to 32;

1.

4. The composition of claim 1 in which the weight ratio of the 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide to cloquintocet acid is from 8:

1 to 64;

1.

5. The composition of claim 1 in which the weight ratio of the 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide to cloquintocet acid is from 8:

1 to 16;

1.

6. A method of protecting wheat and barley from injury caused by applying a 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide of the formula (I)

7. The method of claim 6 wherein the 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide is a 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)-2-pyridinecarboxylic acid derivative or a 4-amino-3-chloro-6-(2,4-dichloro-3-methoxy-phenyl)-2-pyridinecarboxylic acid derivative.

8. The method of claim 6 wherein the amount of cloquintocet acid applied is such that the weight ratio of 6-(trisubstituted aryl)-4-amino-2-pyridinecarboxylate herbicide to cloquintocet acid is from 4:

1 to 32;

1.

9. The method of claim 6 wherein the amount of cloquintocet acid applied is such that the weight ratio of 6-(trisubstituted aryl)-4-amino-2-pyridinecarboxylate herbicide to cloquintocet acid is from 8:

1 to 64;

1.

10. The method of claim 6 wherein the amount of cloquintocet acid applied is such that the weight ratio of 6-(trisubstituted aryl)-4-amino-2-pyridinecarboxylate herbicide to cloquintocet acid is from 8:

1 to 16;

1.