Abstract: This article analysed the circumstances on cockroach's distribution of population density, infestation rate, insecticide resistance, measure and effect of control. The important targets of cockroach's control in the city area of all province are Blattella grermanica and Periplaneta americana. The average density index declined from 1.42 body/box in 1991 to 0.19 body /box in 1993; The average infestation rate was 2.82%; The lethal doses of most insecticides in use to Blattella grermanica increased in varying degree. The environmental management is the measure for the permanent control of cockroach. The insecticide's rational use is the key to postponing and reducing cockroach's insecticide-resistance.

摘要： 目的：分析全省城区蟑螂种群数量分布、侵害率、抗药性等情况以及防制措施与效果。方法：采用目测法、药驱法、粘捕法、点滴法，同时进行综合防制。结果：全省城区蟑螂防制的主要对象是德国小蠊和美洲大蠊。蟑螂平均密度指数（只／盒）由1991年的1.42下降到1993年的0.19；蟑螂平均侵害率为2.82％；常用杀虫剂对德国小蠊的致死量1992～1997年均有不同程度的增高。结论：环境防制是治本措施，合理使用杀虫剂是延缓和降低蟑螂抗药性的关键。

关键词: 蟑螂, 种群密度, 侵害率, 抗药性