关键词: 中华按蚊, 敏感品系, 区分剂量, 抗药性监测

Abstract:

Objective To establish the susceptibility baselines of Anopheles sinensis to commonly used insecticides. Methods The An. sinensis was provided by the National Institute of Parasitic Diseases Control and Prevention, Chinese Center for Disease Control and Prevention, which was reared in the laboratory for more than 50 years without exposure to any pesticides. Impregnation method and filter paper contact method were used to determine the susceptibility to commonly used insecticides for the larvae and adults of An. sinensis. Results The susceptibility baselines of An. sinensis larvae to deltamethrin, beta-cypermethrin, permethrin, dichlorvos, BPMC, fenitrothion, and temephos were established by impregnation method; the results were described as y＝13.0586＋3.8987x, y＝9.2950＋2.1510x, y＝10.3449＋4.4594x, y＝4.3319＋8.7669x, y＝11.3541＋11.2014x, y＝11.5447＋6.9681x, and y＝10.8033＋4.6466x, respectively. The susceptibility baselines of adult An. sinensis to deltamethrin, beta?cypermethrin, permethrin, and BPMC were established by filter paper contact method; the results were described as y＝12.5204＋3.6871x, y＝10.2596＋3.0291x, y＝8.4266＋2.6610x, and y＝13.8210＋5.0963x, respectively. Conclusion The susceptibility baselines of An. sinensis larvae to seven insecticides and those of adult An. sinensis to four insecticides have been established. The results can be used as the reference for the discriminating doses for the larvae and adults of An. sinensis in China.

Key words: Anopheles sinensis, Susceptible strain, Discriminating dose, Resistance monitoring