Herbicidal composition

Patent metadata

Field	Value
Publication number	US-9339038-B2
Application number	US-201314382620-A
Country	US
Kind code	B2
Filing date	Mar 5, 2013
Priority date	Mar 9, 2012
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

To provide a high active herbicidal composition having a broad herbicidal spectrum.
A herbicidal composition comprising synergistically effective amounts of (A) pyridate or its salt and (B) at least one sulfonylurea compound selected from the group consisting of flazasuifuron, nicosulfuron, trifioxysulfuron, chlorimuron and its alkyl ester, halosulfuron and its alkyl ester, and their salts.

First claim

The invention claimed is:

1. A herbicidal composition comprising synergistically effective amounts of (A) pyridate or its salt and (B) at least one sulfonylurea compound selected from the group consisting of flazasulfuron and its salts; trifloxysulfuron and its salts; chlorimuron, its alkyl esters, and their salts; and halosulfuron, its alkyl esters, and their salts; wherein the weight ratio of (A) to (B) is from 200:1 to 0.75:1.

2. A method for controlling undesired plants or inhibiting growth, which comprises applying the herbicidal composition as defined in claim 1 in synergistically effective amounts to the undesired plants or to a place where they grow.

3. The method according to claim 2 , wherein (B) of the herbicidal composition is flazasulfuron or its salts.

4. The method according to claim 3 , wherein (A) is applied in an amount of from 200 to 5,000 g/ha and (B) is applied in an amount of from 10 to 150 g/ha.

5. The method according to claim 3 , wherein the undesired plant is green kyllinga.

6. The method according to claim 3 , wherein the undesired plant is green kyllinga having lowered sensitivity to herbicides.

7. The method according to claim 2 , wherein (A) is applied in an amount of from 200 to 5,000 g/ha and (B) is applied in an amount of from 10 to 500 g/ha.

8. The method according to claim 2 , wherein the undesired plant is green kyllinga.

9. The method according to claim 2 , wherein the undesired plant is green kyllinga having lowered sensitivity to herbicides.

10. The herbicidal composition according to claim 1 , wherein (B) is flazasulfuron or its salts.

11. The herbicidal composition according to claim 10 , wherein the mixing ratio of (A) to (B) is from 200:1 to 1.3:1 by the weight ratio.

12. A method for controlling green kyllinga or inhibiting its growth, which comprises applying a herbicidally effective amount of (A) pyridate or its salt to the green kyllinga or to a place where it grows, wherein the green kyllinga is green kyllinga having lowered sensitivity to at least one sulfonylurea compound selected from the group consisting of flazasulfuron, trifloxysulfuron, chlorimuron and its alkyl ester, halosulfuron and its alkyl ester, and their salts, wherein (A) pyridate or its salt is applied in an amount of from 1,200 to 5,000 g/ha.

13. The method according to claim 12 , wherein the sulfonylurea compound is flazasulfuron or its salts.

Assignees

• Ishihara Sangyo Kaisha

Inventors

• Yamada Ryu
• Okamoto Hiroyuki
• Terada Takashi

Classifications

• A01N47/36 Primary

  containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof · CPC title

• A01N47/06 Primary

  containing —O—CO—O— groups; Thio analogues thereof · CPC title

• A01N47/38

  containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof · CPC title

• A01N43/58 Primary

  1,2-Diazines; Hydrogenated 1,2-diazines · CPC title