广东省白纹伊蚊抗药性现状与抗性治理对策

目的 调查广东省白纹伊蚊对常用杀虫剂的抗性现状，以提出预防蚊虫产生抗药性的相应对策。方法 在广东省5座城市（分别位于东、南、西、北、中位置）采集白纹伊蚊幼虫，在实验室繁殖1～2代后，采用WHO生物测试法进行测定。结果 广东省白纹伊蚊对溴氰菊酯、高效氯氰菊酯抗药性系数分别为3．10～4．20和2．23～2．91，均呈低抗药性；对马拉硫磷抗药性系数为1．05～1．91，属敏感；部分城市白纹伊蚊对其他杀虫剂产生了不同程度抗药性。结论 应加强对白纹伊蚊抗药性监测，科学合理使用杀虫剂，预防或延缓抗药性产生。

Resistance of Aedes albopictus to Insecticides and It's Resistance Management in Guangdong Province

Objective To survey the resistance status of Aedes albopictus to several commonly used insecticides in Guangdong province, and learn how to prevent the occurrence and development of resistance. Methods Larvae of Ae. albopictus were collected in five cities located in the east, south, west, north and middle of Guangdong province, and were bred for 1 to 2 generations in the lab, then tested with WHO standard bioassay to calculate LCs0 and resistance index. Results Ae. albopictus had low resistance to dehamethrin and cypermethrin, the resistant index was 3.10-4.20 against dehamethrin, and 2.23-2.91 against cypermethrin. Ae. albopictus was sensitivity to malathion, and the index is 1.05-1.91. Ae. albopictus from some cities also had developed resistance to other insecticides in different levels. Conclusion Resistance should be monitored regularly. Insecticides should be used scientifically and rationally to prevent and reduce the occurrence and development of resistance.