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[目的]了解上海市松江区蚊虫的抗性现状,以便科学、合理地使用杀虫剂。[方法]采用药液浸渍法和药膜接触法测定淡色库蚊和中华按蚊对杀虫剂的抗性。[结果]淡色库蚊对敌敌畏的抗性系数为30.07,为高抗;对氯氰菊酯、仲丁威及溴氰菊酯的抗性系数分别为3.96、3.25和2.79,均为低抗;而对高效氯氰菊酯抗性系数为0.28,属敏感。中华按蚊对DDT和溴氰菊酯的死亡率分别为73.36%和57.50%,属抗性群体。[结论]松江区蚊虫对杀虫剂多产生不同程度的抗性,应注意轮换、复配用药以控制和延缓抗性的发展。
[Objective] To understand the status quo of mosquito resistance in Songjiang District of Shanghai so as to make scientific and rational use of insecticides. [Method] The resistance of insecticides to Culex pipiens pallens and Anopheles sinensis was determined by liquid immersion and membrane contact method. [Result] The resistance coefficient of Culex pipiens pallens to dichlorvos was 30.07, which was high resistance. The resistance coefficients to cypermethrin, sec-butyl and deltamethrin were 3.96, 3.25 and 2.79, respectively, Cypermethrin resistance coefficient of 0.28, is sensitive. The death rates of Anopheles sinensis against DDT and deltamethrin were 73.36% and 57.50% respectively, which were resistant groups. [Conclusion] The mosquitoes in Songjiang District had more degrees of resistance to insecticides. Rotation and compounding should be taken to control and delay the development of the resistance.