关键词: 诺毕速灭松, 速灭灵, 淡色库蚊, 家蝇, 击倒

Abstract: Laboratory space spraying of Sumithion in the KT₅₀ were 3.27 and 2.6 min respectively and the mortalities of 24 hours were all 100 peroent for Culex pipiens pallens and Musce domestica vicina at 6ml/m³ (including fenithion 30mg and tetramethrin 3mg/m³). The densities of mosquitoes and flies could be reduced 87.8-100% after treatment with same dose for 1-24 hours. Space spraying of Sumithrin in laboratory, the KT₅₀ were 7.8 and 4.48 min respectively for mosquitoes and flies and the mortalities of 24 hours were all 100% at 0.16ml/m³ (including d-phenothrin 4mg/m³). The densities of mosquitoes and flies could be reduced 76.4-100% in the field after treated with same dose for 1-24 hours. These two kinds of insecticide had powerful function of knockdowning and killing, while, the effects of Sumithrin was not as high as Sumithion at concentration of 4mg/m³.