Synergistic weed control from applications of penoxsulam and pethoxamid

• US 9,288,990 B2
• Filed: 03/12/2014
• Issued: 03/22/2016
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Mann, Richard Kevin, Nagy, Peter, Babu, Kirupanandam Ramesh
• Primary Examiner(s): Pak, John
• Assistant Examiner(s): Holt, Andriae M
• Application Number:
  US14/206,459
• Publication Number:
  US 20140274711A1
• Time in Patent Office: 741 Days
• Field of Search: 504/136
• US Class Current: 1/1
• CPC Class Codes: A01N 37/20 containing the group , wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
• CPC Class Codes: A01N 43/90 having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

Abstract

Disclosed herein are herbicidal compositions comprising a synergistic herbicidally effective amount of (a) penoxsulam, or an agriculturally acceptable salt thereof, and (b) pethoxamid, or an agriculturally acceptable salt thereof. Also disclosed herein are methods of controlling undesirable vegetation, which comprise applying to vegetation or an area adjacent the vegetation or applying to soil to prevent the emergence or growth of vegetation (a) penoxsulam, or an agriculturally acceptable salt thereof, and (b) pethoxamid, or an agriculturally acceptable salt thereof, wherein (a) and (b) are each added in an amount sufficient to produce a synergistic herbicidal effect.

Claims

1. A herbicidal composition comprising a synergistic herbicidally effective amount of (a) penoxsulam, or an agriculturally acceptable salt thereof, and (b) pethoxamid, or an agriculturally acceptable salt thereof, wherein the weight ratio of (a) to (b) is from 1:

480 to 1;

60.

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

300 to 1;

60.

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

240 to 1;

120.

4. The composition of claim 1, wherein the composition is provided as a herbicidal concentrate.

5. A method of controlling undesirable vegetation, the method comprising, applying to vegetation or an area adjacent the vegetation or applying to soil to control the emergence or growth of vegetation a synergistic herbicidally effective amount of (a) penoxsulam, or an agriculturally acceptable salt thereof, and (b) pethoxamid, or an agriculturally acceptable salt thereof, wherein the weight ratio of (a) to (b) is from 1:

480 to 1;

60.

6. The method of claim 5, wherein (a) and (b) are applied simultaneously.

7. The method of claim 5, wherein (a) and (b) are applied to the soil to control the emergence or growth of undesirable vegetation.

8. The method of claim 5, wherein (a) and (b) are applied post-emergence to the undesirable vegetation to control the growth of the undesirable vegetation.

9. The method of claim 5, wherein the undesirable vegetation is controlled in corn, sorghum or cereal crops.

10. The method of claim 5, wherein the undesirable vegetation is controlled in glyphosate-, 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase inhibitor-, glufosinate-, glutamine synthetase inhibitor-, dicamba-, phenoxy auxin-, pyridyloxy auxin-, synthetic auxin-, auxin transport inhibitor-, aryloxyphenoxypropionate-, cyclohexanedione-, phenylpyrazoline-, acetyl CoA carboxylase (ACCase) inhibitor-, imidazolinone-, sulfonylurea-, pyrimidinylthiobenzoate-, triazolopyrimidine-, sulfonylaminocarbonyltriazolinone-, acetolactate synthase (ALS) or acetohydroxy acid synthase (AHAS) inhibitor-, 4-hydroxyphenyl-pyruvate dioxygenase (HPPD) inhibitor-, phytoene desaturase inhibitor-, carotenoid biosynthesis inhibitor-, protoporphyrinogen oxidase (PPO) inhibitor-, cellulose biosynthesis inhibitor-, mitosis inhibitor-, microtubule inhibitor-, very long chain fatty acid inhibitor-, fatty acid and lipid biosynthesis inhibitor-, photosystem I inhibitor-, photosystem II inhibitor-, triazine-, or bromoxynil-tolerant crops.

11. The method of claim 10, wherein the tolerant crop possesses multiple or stacked traits conferring tolerance to multiple herbicides or multiple modes of action.

12. The method of claim 5, wherein the undesirable vegetation comprises a herbicide resistant or tolerant weed.

13. The method of claim 5, wherein the undesirable vegetation includes a broadleaf weed.

14. The method of claim 5, wherein the undesirable vegetation includes a grass weed.

15. The method of claim 5, wherein the undesirable vegetation includes a sedge weed.

16. The method of claim 5, wherein (a) and (b) are applied in a weight ratio of (a) to (b) from 1:

300 to 1;

60.

17. The method of claim 5, wherein (a) is applied in an amount of from 3-30 g ai/ha.

18. The method of claim 5, wherein (b) is applied in an amount of from 750-1300 g ai/ha.