Herbicidal compositions

Patent metadata

Field	Value
Publication number	US-9247739-B2
Application number	US-86361108-A
Country	US
Kind code	B2
Filing date	Jul 21, 2008
Priority date	Jan 25, 2008
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

The present invention relates to a method of controlling weeds using mixtures of non-selective herbicides and plant growth regulators. It also relates to mixtures of non-selective herbicides and plant growth regulators per se, and compositions comprising the same.

First claim

The invention claimed is:

1. A method for controlling weeds, comprising applying to the weeds or to the locus where the weeds are present, a mixture of at least one non-selective herbicide (A) and at least one plant growth regulator (B) in a synergistically effective amount with a mixture ratio of A:B of from about 1:1 to about 1:10, or a composition comprising said mixture, wherein the plant growth regulator (B) is trinexapac-ethyl and wherein the herbicide (A) is selected from the group consisting of paraquat and fomesafen.

2. The method claim 1 , wherein said weeds are monocotyledonous weeds.

3. The method according to claim 1 , wherein the herbicide is paraquat.

4. The method claim 3 , wherein said weeds are monocotyledonous weeds.

5. The method according to claim 1 , wherein the herbicide is fomesafen.

6. The method claim 5 , wherein said weeds are monocotyledonous weeds.

7. The method according to claim 1 , wherein the mixture is applied post-emergence of the weeds.

8. The method according to claim 1 , wherein the composition is applied at an application rate of from about 0.001 kg ai/ha to about 5.0 kg ai/ha.

9. The method according to claim 1 , wherein the composition is applied at an application rate of from about 0.01 kg ai/ha to about 5.0 kg ai/ha.

10. The method according to claim 1 , wherein the composition is applied at an application rate of from about 0.05 kg ai/ha to about 1.0 kg ai/ha.

11. The method of claim 1 , wherein said weeds are Chenopodium album L.

12. A method for controlling weeds in a crop, comprising applying to the crop a herbicidal composition comprising a non-selective herbicide (A) and a plant growth regulator (B) in a synergistically effective amount with a mixture ratio of A:B of from about 1:1 to about 1:10, wherein the crop is resistant to the non-selective herbicide, the plant growth regulator (B) is trinexapac-ethyl, and wherein the herbicide (A) is selected from the group consisting of paraquat and fomesafen.

13. The method according to claim 12 , wherein the herbicidal composition is applied post-emergence of the weeds.

14. The method according to claim 12 , wherein the herbicidal composition is applied at an application rate of from about 0.01 kg ai/ha to about 5.0 kg ai/ha.

15. The method according to claim 12 , wherein the herbicidal composition is applied at an application rate of from about 0.05 kg ai/ha to about 1.0 kg ai/ha.

16. The method claim 12 , wherein said weeds are monocotyledonous weeds and said herbicide is fomesafen.

17. The method claim 12 , wherein said weeds are monocotyledonous weeds and said herbicide is paraquat.

18. The method of claim 17 , wherein said monocotyledonous weeds are Cyperus esculentus L. or Bromus tectorum L.

19. A herbicidal composition comprising at least one non-selective herbicide (A) and at least one plant growth regulator (B) in a synergistically effective amount with a mixture ratio of A:B of from about 1:1 to about 1:10, wherein the plant growth regulator (B) is trinexapac-ethyl and wherein the herbicide (A) is selected from the group consisting of paraquat and fomesafen.

20. The herbicidal composition according to claim 19 , wherein the herbicide is paraquat.

21. The herbicidal composition according to claim 19 , wherein the herbicide is fomesafen.

Assignees

• Cordingley Matthew Robert
• Zoschke Andreas
• Syngenta Crop Protection Llc

Inventors

• Cordingley Matthew Robert
• Zoschke Andreas

Classifications

• A01N37/42

  containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids · CPC title

• A01N37/38 Primary

  having at least one oxygen or sulfur atom attached to an aromatic ring system · CPC title

• A01N43/90

  having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system · CPC title

• A01N57/20

  containing acyclic or cycloaliphatic radicals · CPC title

• A01N61/00 Primary

  Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action · CPC title