关键词: 家蝇, 抗性品系, 抗性系数, 杀虫剂

Abstract: Objective Susceptibility of Deltamethrin resistant Musca domestica to 12 insecticides was tested to utilize the existing insecticides reasonably.Methods Topical application method was used.Results The housefly's resistant ratios to DDT,DDVP,trichlorphon,phoxin,propoxur,BPMC,permethrin,cypermethrin,high effective cypermethrin,allethrin,phenomethrin and S 2852 were 5.7,1.0,1.1,1.0,1.9,1.5,34.1,21.5,20.1,16.6,20.8,30.6 folds respectively.Conclusion If the housefly yields resistance to Deltamethrin,exchange or mix use of organophosphate or carbamate insecticides may be a better method.