我省城市从９０年代初陆续开展大面积灭蟑螂工作，近年反映药效降低。为此，１９９７年在５个城市进行蜚蠊对常用杀虫剂的敏感性测定。１材料与方法１１杀虫剂９８％溴氰菊酯、９５４５％氯菊酯、９０％敌敌畏和９３％马拉硫磷，由中国科学院上海昆虫研究所提供。１?.. Since the early 90s, our province’s cities have successively carried out a large-scale work on killing cockroaches in recent 90 years, reflecting a reduction in efficacy in recent years. To this end, cockroaches were tested for susceptibility to commonly used insecticides in five cities in 1997. 1 Materials and methods 1  1 insecticides 98% deltamethrin, 95  45% permethrin, 90% dichlorvos and 93% malathion, provided by the Shanghai Institute of Entomology, Chinese Academy of Sciences. 1? ..