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Claims for Patent: 8,173,702

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Claims for Patent: 8,173,702

Title:Pesticidal composition and method for controlling harmful insects
Abstract: A pesticidal composition containing: 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylate, a saturated hydrocarbon having an initial boiling point of 150.degree. C. or higher and a 95%-distillation temperature of 300.degree. C. or lower, and at least one alkyl carboxylate ester selected from the group consisting of the following esters (i) to (iii): (i) alkyl alkylcarboxylate esters having 12 to 20 carbon atoms, (ii) dialkyl dicarboxylate esters having 12 to 20 carbon atoms, and (iii) trialkyl acetylcitrate esters having 12 to 20 carbon atoms; has an excellent pesticidal activity.
Inventor(s): Yamada; Masahiro (Toyonaka, JP), Tanaka; Yoshito (Toyonaka, JP)
Assignee: Sumitomo Chemical Company, Limited (Tokyo, JP)
Application Number:12/593,821
Patent Claims: 1. A pesticidal composition, comprising: 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3(2-cyano-1-propenyl)-2,2-dimethylcyclo-propanecarboxylate; a saturated hydrocarbon having an initial boiling point of 150.degree. C. or higher and a 95%-distillation temperature of 300.degree. C. or lower; and at least one glycol ether selected from the group consisting of mono-(C.sub.2-C.sub.3)-alkylene glycol mono-(C.sub.1-C.sub.3)alkylethers and di-(C.sub.2C.sub.3)-alkylene glycol mono-(C.sub.1-C.sub.3)-alkyl ethers.

2. The pesticidal composition according to claim 1, wherein the composition comprises the saturated hydrocarbon in an amount of 0.5 to 10 parts by weight per part by weight of the glycol ether.

3. The pesticidal composition according to claim 1 or 2, wherein the composition comprises 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylate in an amount of 0.00001 to 0.1 part by weight per part by weight of the glycol ether.

4. The pesticidal composition according to claim 1, wherein the composition comprises 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylate in an amount of 0.0001 to 0.5% by weight.

5. The pesticidal composition according to claim 1, wherein the glycol ether is one or two glycol ethers selected from the group consisting of propylene glycol monomethyl ether and propylene glycol monoethyl ether.

6. The pesticidal composition according to claim 1, wherein the composition is for controlling insects Blattaria.

7. A pest-controlling agent, comprising the pesticidal composition according to claim 1.

8. A method for controlling harmful insect comprising applying an effective amount of a pesticidal composition comprising: 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylate; a saturated hydrocarbon having an initial boiling point of 150.degree. C. or higher and a 95%-distillation temperature of 300.degree. C. or lower; and at least one glycol ether selected from the group consisting of mono-(C.sub.2-C.sub.3)-alkylene glycol mono-(C.sub.1C.sub.3)alkylethers and di-(C.sub.2C.sub.3)-alkylene glycol mono-(C.sub.1-C.sub.3)-alkyl ethers to the insect or a locus where the insect inhabits.

9. The method according to claim 8, wherein the composition comprises the saturated hydrocarbon in an amount of 0.5 to 10 parts by weight per part by weight of the glycol ether.

10. The method according to claim 8 or 9, wherein the composition comprises 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropane-carboxylate in an amount of 0.00001 to 0.1 part by weight per part by weight of the glycol ether.

11. The method according to claim 8, wherein the composition comprises 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 3-(2-cyano-1-propenyl)-2,2-dimethyl cyclopropanecarboxylate in an amount of 0.0001 to 0.5% by weight.

12. The method according to claim 8, wherein the glycol ether is one or two glycol ethers selected from the group consisting of propylene glycol monomethyl ether and propylene glycol monoethyl ether.

13. The method according to claim 8, wherein the composition is for controlling insects Blattaria.
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