关键词: 家蝇, 雄成虫, 杀虫剂, 敏感性, 溴氰菊酯

Abstract: Objective To evaluate the susceptibility of male house fly (Musca domestica) to deltamethrin at different development days after eclosion to 7 insecticides in four days adults,a study was undertaken. Methods Topical application method was used based on the WHO protocols,in laboratory colony of M.domestica,which was unexposed to insecticides for a period of thirty years. Mortality rates recorded at different exposure doses. Data were subjected to analysis and the susceptibility was calculated at LD₅₀ by comparison with each other. Results It was less susceptibility for male house fly exposed to deltamethrin after 4 days eclosion,with LD ₅₀ from 0.000 41- 0.001 17 μg·a.i./♂ ,than after 5-8 d ays,with LD₅₀ from 0.000 14- 0.000 28 μg·a.i./♂ . At four days old,LD50 s for male adults were 0.000 39 ,0.000 63 ,0.002 80 ,0.003 04 ,0.030 09 ,0.059 44 and 0.062 48 μg·a.i./♂ to deltamethrin,Lambda-cyhalothrim,beta-cypermethrin,permethrin,chlorpyrifos,dichlorvos and tetramethrin respectively. Conclusion There is a relation of M.domestica insecticide susceptibility to sex and insecticide.