Herbicidal composition having improved herbicidal activity

Patent metadata

Field	Value
Publication number	US-9526246-B2
Application number	US-201314410354-A
Country	US
Kind code	B2
Filing date	Jun 27, 2013
Priority date	Jun 29, 2012
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

In order to reduce the environmental load on an area where a herbicide is applied or a surrounding area thereof more than ever, it has been required to improve activity of a herbicidal active ingredient and to reduce its dose as far as possible.
A herbicidal composition comprising (1) a benzoylpyrazole compound represented by the formula (I) or its salt:

wherein each of Q, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and A is as defined in the specification, and (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate.

First claim

The invention claimed is:

1. A herbicidal composition comprising (1) a benzoylpyrazole compound: 1- (1-ethyl-4- (3 - (2-methoxyethoxy)-2-methyl-4- (methylsulfonyl)benzoyl)- 1H-pyrazol-5-yloxy)ethyl methyl carbonate or its salt,
and (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate, and
wherein the mixing ratio of the benzoylpyrazole compound (1) and the compound (2) is from 1:0.75 to 1:150 by weight.

2. The herbicidal composition according to claim 1 , wherein the compound (2) is at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester and a polyoxyalkylene fatty acid ester.

3. The herbicidal composition according to claim 1 , wherein the mixing ratio of the benzoylpyrazole compound (1) and the compound (2) is from 1:0.75 to 1:100 by weight.

4. A method for controlling undesired plants, which comprises applying (1) a benzoylpyrazole compound: 1-(1-ethyl-4-(3-(2-methoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoyl)-1H-pyrazol-5-yloxy)ethyl methyl carbonate or its salt,
and (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate, to the undesired plants or to a place where they grow, and
wherein the mixing ratio of the benzoylpyrazole compound (1) and the compound (2) is from 1:0.75 to 1:150 by weight.

5. The method according to claim 4 , wherein the compound (2) is at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester and a polyoxyalkylene fatty acid ester.

6. The method according to claim 4 , wherein the mixing ratio of the benzoylpyrazole compound (1) to the compound (2) is from 1:0.75 to 1:100 by weight.

7. A method of improving the herbicidal activity of (1) a benzoylpyrazole compound: 1-(1-ethyl-4-(3-(2-methoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoyl)- 1 H-pyrazol-5-yloxy)ethyl methyl carbonate or its salt, by using (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate, and wherein the mixing ratio of the benzoylpyrazole compound (1) and the compound (2) is from 1:0.75 to 1:150 by weight.

8. The method according to claim 7 , wherein the compound (2) is at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester and a polyoxyalkylene fatty acid ester.

9. The method according to claim 7 , wherein the mixing ratio of the benzoylpyrazole compound (1) to the compound (2) is from 1:0.75 to 1:100by weight.

Assignees

• Ishihara Sangyo Kaisha

Inventors

• Kikugawa Hiroshi
• Yamada Ryu
• Endo Mitsuru
• Satake Yoshikazu

Classifications

• A01N43/56 Primary

  1,2-Diazoles; Hydrogenated 1,2-diazoles · CPC title

• A01N43/08

  with oxygen as the ring hetero atom · CPC title

• A01N37/36

  containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids · CPC title

• A01N47/06

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

• A01N25/30 Primary

  characterised by the surfactants · CPC title