2010年长沙市家蝇抗药性测定研究

Study on Resistance of Musca domestica to Insecticides in Changsha

目的掌握长沙市城区家蝇抗性动态。方法点滴法。结果 2010年5种杀虫剂LD50分别为溴氰菊酯0.0262μg/虫、氯氰菊酯0.3189μg/虫、氯菊酯0.1490μg/虫、敌敌畏0.2320μg/虫、高效氯氰菊酯0.1506μg/虫。结论长沙市家蝇对5种杀虫剂的抗药性相比于2003年呈整体上升趋势,但抗药性增长到一定程度会出现相对平缓的波动状态。

Objective To investigate the resistance of Musca domestica to pesticides in urban areas of Changsha in 2010. Method Dropping method was used in this study. Results The LD50 of five kinds of pesticides was deltamethrin 0.0262,cypermethrin 0.3189,permethrin 0.1490,DDVP 0.2320,and cypermethrin 0.1506,respectively. Conclusions Compared with the year 2003,the resistance of Musca domestica to the five insecticides showed an overall upward trend,but the resistance was in a state of relatively smooth fluctuation when it increased to a certain extent.