Methods of weed control in chicory

• US 9,226,506 B2
• Filed: 09/25/2014
• Issued: 01/05/2016
• Est. Priority Date: 09/25/2013
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Larelle, Dominique, de Gaujac, Xavier, Blanchier, Nathalie, Leroux, Philippe, Mann, Richard K., Deconinck, Stefaan, Eelen, Hilde
• Primary Examiner(s): Pryor, Alton
• Application Number:
  US14/496,547
• Publication Number:
  US 20150087514A1
• Time in Patent Office: 467 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A01N 33/18 Nitro compounds
• CPC Class Codes: A01N 43/90 having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
• CPC Class Codes: A01N 47/36 containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof

Abstract

Disclosed herein are methods of controlling undesirable vegetation in chicory which can 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. The methods can further comprise applying (b) a second pesticide or an agriculturally acceptable salt or ester thereof to the vegetation or the area adjacent the vegetation, or to the soil adjacent thereto. In some embodiments, (b) includes an ALS inhibitor (e.g., triflusulfuron-methyl), an inhibitor of microtubule assembly (e.g., propyzamide, trifluralin, or benfluralin), a cellulose biosynthesis inhibitor (e.g., isoxaben), a protoporphyrinogen oxidase (PPO) inhibitor (e.g., flumioxazin), or combinations thereof.

Claims

1. A method of controlling undesirable vegetation in chicory comprising applying to the vegetation or an area adjacent the vegetation, or applying to the soil adjacent thereto, a herbicidally effective amount of (a) penoxsulam or an agriculturally acceptable salt thereof, wherein the vegetation is present or will be present in chicory.

2. The method of claim 1, wherein (b) a second pesticide or an agriculturally acceptable salt or ester thereof is applied to the vegetation or the area adjacent the vegetation, or to the soil adjacent thereto.

3. The method of claim 2, wherein (a) and (b) are applied simultaneously.

4. The method of claim 2, wherein (b) includes an acetolactate synthase (ALS) inhibitor, an inhibitor of microtubule assembly, a cellulose biosynthesis inhibitor, a protoporphyrinogen oxidase (PPO) inhibitor, or combinations thereof.

5. The method of claim 4, wherein (b) is selected from the group consisting of triflusulfuron-methyl, propyzamide, benfluralin, trifluralin, isoxaben, flumioxazin, and combinations thereof.

6. The method of claim 2, wherein (b) is applied in an amount of from 20 to 1200 g ai/ha.

7. The method of claim 2, wherein (a) and (b) are applied in a weight ratio of (a) to (b) from 1:

500 to 1;

2.

8. The method of claim 1, wherein the chicory comprises Cichorium intybus L. var. sativum.

9. The method of claim 1, wherein the chicory comprises Cichorium intybus L. var. foliosum.

10. The method of claim 1, wherein (a) is applied after emergence of the undesired vegetation.

11. The method of claim 1, wherein (a) is applied prior to emergence of the undesired vegetation.

12. The method of claim 2, wherein (b) is applied prior to emergence of the undesired vegetation, and (a) is applied after emergence of the undesired vegetation.

13. The method of claim 1, wherein the undesirable vegetation includes Artemisia biennis, Capsella bursa-pastoris, Coronopus didymus, Galinsoga ciliata, Galinsoga parviflora, Matricaria chamomilla, Senecio vulgaris, Solanum nigrum, Sonchus species, and combinations thereof.

14. The method of claim 1, wherein (a) is applied in an amount of from 3 to 15 g ai/ha.

15. The method of claim 1, further comprising applying a herbicide safener.

16. The method of claim 1, further comprising applying an agriculturally acceptable adjuvant or carrier.

17. The method of claim 1, wherein the chicory is not genetically engineered or bred to exhibit herbicide resistance.

18. The method of claim 1, wherein the chicory is not genetically engineered or bred to exhibit resistance to an ALS inhibitor.

19. The method of claim 1, wherein the chicory possesses single, multiple or stacked traits conferring tolerance to single or multiple herbicides or single or multiple modes-of-action.

20. The method of claim 1, wherein the undesirable vegetation comprises a herbicide resistant or tolerant weed.

21. The method of claim 2, wherein (b) is applied after emergence of the undesired vegetation.

22. The method of claim 2, wherein (b) is applied prior to emergence of the undesired vegetation.