天津市2010年蚊蝇抗药性监测

目的了解天津市蚊、蝇对常用杀虫剂的抗药性,为科学合理使用杀虫剂提供依据。方法选择6个区(县)作为监测点,分别用浸渍法和点滴法测定淡色库蚊和家蝇的抗药性。结果天津市蚊、蝇对常用杀虫剂均产生了一定的抗性,淡色库蚊对DDVP、溴氰菊酯、高效氯氰菊酯、双硫磷和仲丁威的平均相对抗性分别为61.49、13.08、3.72、5.03和17.84倍;家蝇对DDVP、高效氯氰菊酯、溴氰菊酯、残杀威、氯菊酯的平均抗性分别为9.49、58.44、11.24、2.66和2.95倍。结论各地应根据抗药性监测结果,合理应用杀虫剂,积极提倡综合防制,有效开展灭蚊、蝇工作。

Surveillance of the resistance of Culex pipiens pallens and Musca domestica to insecticides in Tianjin in 2010

Objective To study the resistance of Culex pipiens pallens and Musca domestica to insecticides in Tianjin in order to provide the basis for better use of insecticides.Methods Six districts(counties) of Tianjin were selected as the surveillance sites.The resistance of mosquitoes to insecticides was evaluated by dipping method,with the topical application method used for the detection of the resistance of houseflies.Results It was found that Cx.pipiens pallens and M.domestica in Tianjin were resistant to insecticides to a certain extent.The mean relative resistance of Cx.pipiens pallens to DDVP,deltaMethri,β-Cypermethrin,parathion and fenobucarb were 61.49,13.08,3.72,5.03 and 17.84,respectively,and that of M.domestica to DDVP,β-Cypermethrin,deltamethri,propoxur and permethin were 9.49,58.44,11.24,2.66 and 2.95,respectively.Conclusion The resistance of Cx.pipiens pallens and M.domestica to different insecticides varies and the surveillance results should be a guidance for the reasonable use of the insecticides for better control of the insects.