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目的:了解南昌市致乏库蚊对12种常用杀虫剂的抗药性现状,制定防制对策。方法:浸渍法。结果:致乏库蚊对敌敌畏、敌百虫和溴氰菊酯产生高度抗性;对三氯杀虫酯抗性上升趋势明显;对丙体六六六和杀螟松呈现敏感。与浙江敏感品系比较,仲丁威、残杀威抗性不明显;拟除虫菊酯种类出现不同程度抗性。结论:抗药性产生与用药时间、用药量和使用频度有关。杀螟松与敌敌畏、敌百虫不存在交互抗性,可作为替换品种。灭蚊达标应采取环境治理措施,重点清除蚊虫滋生场所,辅之以杀灭幼虫,合理使用化学杀虫剂,停用敌敌畏,控制使用拟除虫菊酯,重视推广应用生物杀虫剂
Objective: To understand the current situation of resistance of Culex pipiens pallens to 12 kinds of commonly used insecticides in Nanchang and to develop control strategies. Methods: dipping method. Results: Culex pipiens pallens were highly resistant to dichlorvos, trichlorfon and deltamethrin. The resistance to trichloro-insecticide increased significantly, and it was sensitive to BHC and fenitrothion. Compared with the susceptible strains in Zhejiang Province, Zhongdingwei and Propoxur did not show any obvious resistance; the pyrethroid varieties showed different degrees of resistance. Conclusion: The emergence of drug resistance and medication time, dosage and frequency of use. Diafenide and dichlorvos, trichlorfon does not exist cross-resistance, can be used as a replacement species. Environmental control measures should be taken to achieve the target of controlling mosquitoes, with emphasis on clearing breeding grounds for mosquitoes, supplemented by killing of larvae, rational use of chemical pesticides, stopping of dichlorvos, controlling the use of pyrethroids, promoting the use of biopesticides