山东省城镇地区淡色库蚊抗药性的研究

Studies on the surxeillance of resistance of culex pipiens pallens in urban area of Shandong

目的:调查山东省城镇地区淡色库蚊对常用杀虫剂的抗性,研究抗性产生的规律。方法:用WHO生物测定法,测定敏感品系和现场淡色库蚊ⅠⅤ龄幼虫对杀虫剂的敏感性/抗性。结果:我省主要蚊虫抗药程度高,分布范围广。主要蚊虫对常用的杀虫剂均产生了不同程度的抗性,对DDVP的抗性在6.10-21.18倍之间,对溴氰菊酯抗性在8-42倍之间.对残杀威的抗性在3.46-6.64倍之间。部分地区的抗性水平有逐年增高的趋势。结论:加强抗性的监测和治理工作具有非常紧迫的意义。

Objective： To survey on the resistance of Culex pipiens pallens to commonly used insecticides in Shandong. Methods： WHO bioassay was used for detection of resistance in both laboratory and field collected Cx. pipiens pallens. Results： The resistance to insecticides is high in Shandong with wide distribution. The resistant index is 6.10-21.18 for Cx. Pipiens pallens against DDVP, 8-24 for the mosquito against deltamethrin, and 3.46-6.64 for the mosquito against propoxur. There is an increasing tendency of resistance in some areas in Shandong. Conclusion： The surveillance and management of insecticidal resistance should be strengthened in the chemical control of mosquitoes.