Abstract:

Objective The objective of this study was to determine the resistance of Culex pipiens pallens to commonly- used insecticides in Qidong city, Jiangsu to provide scientific evidences for its effective control. Methods Soaking method were used for measuring the insecticides resistance of Cx. pipiens pallens larva to deltamethrin, beta - cypermethrin, permethrin, parathion and fenobucarb. Results The resistance ratios of Cx. pipiens pallens to deltamethrin, beta - cypermethrin, permethrin, parathion and fenobucarb were 1.07, 0.56, 7.36, 6.85, 1.20, in Qidong city, in relation to susceptible population. Conclusion In Qidong city, Cx. pipiens pallens is susceptible to deltamethrin, beta-cypermethrin and fenobucarb, low resistance to permethrin and parathion.

Key words: Culex pipiens pallens, Insecticides, Insecticide resistance, Cross-resistance, Negative cross-resistance

摘要：

目的 了解启东市淡色库蚊对常用杀虫剂的抗药性状况,为制定科学、合理、有效的防治措施提供依据。方法 采用幼虫浸渍法测定淡色库蚊幼虫对溴氰菊酯、高效氯氰菊酯、氯菊酯、双硫磷和仲丁威的抗药性。结果 启东市淡色库蚊对溴氰菊酯、高效氯氰菊酯、氯菊酯、双硫磷和仲丁威5种杀虫剂的抗性系数分别为1.07、0.56、7.36、6.85和1.20倍。结论 启东市淡色库蚊对溴氰菊酯、高效氯氰菊酯和仲丁威处于敏感水平;对氯菊酯和双硫磷均产生抗药性,但抗药性程度不高。

关键词: 淡色库蚊, 杀虫剂, 抗药性, 交互抗性, 负交互抗性