摘要
In this paper,we reported the differences in susceptibility to insecticides between adults and larvae of housefly, Musca domestica (L.),and the mechanisms for the differences.The larvae of housefly were much more tolerant to insecticides than the adults,and the tolerance ratio to cyhalothrin was as high as 205.5 for susceptible strain.Mechanism studies showed that higher GST activity was associated with higher insecticide tolerance in the larvae.The co\|toxicity coefficient of the mixture of cyhalothrin and methylene dithiocyanate(4∶1) on pyrethroid\|resistant houseflies was 188.
报导了家蝇成虫和幼虫对杀虫剂敏感性的差异及其机理。家蝇的幼虫对杀虫剂的耐药性比成虫高 ,敏感性家蝇幼虫对三氟氯氰菊酯的耐药性是成虫的 2 0 5 5倍。机理研究表明幼虫高GST活性与其较高的耐药性有关。三氟氯氰菊酯和二硫氰基甲烷混剂 (4∶1)对菊酯抗性家蝇的共毒系数达 188。
