Stevens, Davis, Miller & Mosher
Insecticidal article for electric fumigator
 An insecticidal composition for electric fumigator consisting essentially of: PA0 (A) an insecticidally effective amount of a preparation comprising 2-methyl-4-oxo-3-(2-propynyl)cyclopent-2-enyl-chrysanthemate and a synergist, wherein the weight ratio of said synergist to said chrysanthemate ranges from 1/2 to 8, and PA0 (B) a porous mat suitable for use on an insecticidal mat, said porous mat being impregnated with said preparation. This composition has both a lower content of an insecticidal active ingredient than ever and the capability of exhibiting a sufficient insecticidal activity over a long period of time. 
Sumitomo Chemical Company, Limited
A
A01N
inventional
Shinobu Shiro Satoshi Kunihiro Yasuharu
Yamamoto Oyama Ohi Okada Takei