Safening of 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid and derviatives thereof on cereal crops

• US 9,226,498 B2
• Filed: 01/09/2014
• Issued: 01/05/2016
• Est. Priority Date: 01/10/2013
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Degenhardt, Rory, McGregor, Bill, Satchivi, Norbert M., Weimer, Monte R.
• Primary Examiner(s): Pryor, Alton
• Application Number:
  US14/151,237
• Publication Number:
  US 20140194286A1
• Time in Patent Office: 726 Days
• Field of Search: None
• US Class Current: 1/1
• 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
• CPC Class Codes: A01N 43/90 having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

Abstract

Herbicidal injury that might otherwise be caused by 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid and agriculturally acceptable salt, ester, and amide derivatives thereof in cereal crops is reduced by concomitant application of florasulam.

Claims

1. A method of protecting cereal plants from the harmful effects of a first herbicide which is the compound of the formula (I)

2. The method of claim 1, wherein the first herbicide is applied at a rate of from about 2.5 to about 35 g ae/ha, and the florasulam is applied at a rate of from about 2.5 to about 10 g ai/ha.

3. The method of claim 1, wherein the first herbicide is applied at a rate of from about 5 to about 35 g ae/ha, and the florasulam is applied at a rate of from about 5 to about 10 g ai/ha.

4. The method of claim 1, wherein the first herbicide is the methyl ester or the triethylamine (tea) salt of the compound of formula (i).

5. The method of claim 4, wherein the methyl ester or tea salt is applied at a rate of from about 2.5 to about 10 g ae/ha.

6. The method of claim 4, wherein the methyl ester or tea salt is applied at a rate of from about 5 to about 10 g ae/ha.

7. The method of claim 1, wherein the cereal plant is wheat, barley, or tame oats.

8. The method of claim 1, wherein the first herbicide and florasulam are applied together.

9. A composition effective in protecting cereal plants from the harmful effects of a first herbicide which is the compound of formula (I)

10. The composition of claim 9, wherein the weight ratio of said first herbicide to florasulam is about 1:

1.

11. The composition of claim 9, wherein the herbicide is the methyl ester or tea salt of the compound of formula (i).