Efficacy of aerosols based on 6 kinds of insecticides compound against mosquitoes,flies and cockroaches

Objective In order to observe the efficacy of aerosol insecticides based on pyrethroids in killing Culex pipiens pallens,Musca domestica and Blattella germanica.Methods KT50 of the six kinds of aerosol insecticides were tested according to GB/T 13917.2-2009 in hermetic round canister;killing efficacy in analogous sites were tested according to GB/T13917.10-2009.Results The KT50 of six kinds of aerosol insecticides compound to Cx.pipiens pallens and M.domestica were less than 1.6 min,KT50 of five kinds of insecticides compound were less than 1 min to B.germanica except NO.2 which was over 2.0 min.The 24 h mortality of insects used in the hermetic round canister were 100%.The one hour killing efficacy of the six aerosol insecticides in analogous sites to Cx.pipiens pallens,M.domestica and B.germanica were 100%.Conclusion The six aerosol insecticides compound all show fast killing effects in killing Cx.pipiens pallens,M.domestica and B.germanica.