SYNERGISTIC HERBICIDAL COMPOSITION CONTAINING FLUROXYPYR AND CYHALOFOP, METAMIFOP OR PROFOXYDIM

• US 20110098181A1
• Filed: 10/27/2010
• Published: 04/28/2011
• Est. Priority Date: 10/28/2009
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Weimer, Monte R., Mann, Richard K., McVeigh-Nelson, Ändrea C.
• Granted Patent: US 8,420,571 B2
• Time in Patent Office: Days
• US Class Current: 504/130
• CPC Class Codes: A01N 43/18 with sulfur as the ring hetero atom
• CPC Class Codes: A01N 43/40 six-membered rings
• CPC Class Codes: A01N 43/76 1,3-Oxazoles; Hydrogenated 1,3-oxazoles

Abstract

An herbicidal composition containing (a) fluoroxypyr and (b) cyhalofop, metamifop or profoxydim provides synergistic control of selected weeds particularly on rice.

Claims

1. A synergistic herbicidal mixture comprising an herbicidally effective amount of (a) fluoroxypyr and (b) an ACCase inhibitor herbicide.

2. The mixture of claim 1 in which fluoroxypyr is the acid itself or an agriculturally acceptable salt or ester.

3. The mixture of claim 2 in which fluoroxypyr is the meptyl ester.

4. The mixture of claim 1 in which the ACCase inhibitor herbicide is from the aryloxyphenoxypropionic acid or derivative class of herbicides.

5. The mixture of claim 4 in which the ACCase inhibitor herbicide is cyhalofop or metamifop.

6. The mixture of claim 5 in which cyhalofop is the butyl ester.

7. The mixture of claim 1 in which the ACCase inhibitor herbicide is from the cyclohexanedione class of herbicides.

8. The mixture of claim 7 in which the ACCase inhibitor is profoxydim.

9. The mixture of claim 1 in which the weight ratio of fluoroxypyr (acid equivalent) to cyhalofop (acid equivalent) is between about 1:

12 and about 16;

1.

10. The mixture of claim 1 in which the weight ratio of fluoroxypyr (acid equivalent) to metamifop or profoxydim (active ingredient) is between about 1:

10 and about 75;

1.

11. An herbicidal composition comprising an herbicidally effective amount of the herbicidal mixture of claim 1 and an agriculturally acceptable adjuvant and/or carrier.

12. A method of controlling undesirable vegetation which comprises contacting the vegetation or the locus thereof with or applying to water to prevent the growth of the vegetation an herbicidally effective amount the herbicidal mixture of claim 1.

13. A method of controlling undesirable vegetation in rice which comprises contacting the vegetation or the locus thereof with or applying to water to prevent the growth of the vegetation an herbicidally effective amount of the herbicidal mixture of claim 1.