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目的了解长沙市致倦库蚊对常用杀虫剂的抗性水平,以便指导科学合理地使用杀虫剂。方法对常用的5种杀虫剂用幼虫浸渍法测定LC50。结果 2010年致倦库蚊的抗性与2004年相比,5种杀虫剂中4种都有所增长。结论长沙市致倦库蚊对5种常用杀虫剂都呈高抗性。
Objective To understand the level of resistance of Culex quinquefasciatus to common insecticides in Changsha in order to guide the scientific and rational use of insecticides. Methods LC50 was determined by larvae dipping method on five commonly used insecticides. Results Resistance to Culex quinquefasciatus in 2010 Four of the five pesticides increased compared to 2004. Conclusion Culex quinquefasciatus in Changsha showed high resistance to five commonly used insecticides.