目的 :探讨旅客列车蜚蠊侵害情况及化学防制效果 ,筛选高效、廉价杀虫剂。方法 :用药激法调查蜚蠊密度 ,再用 4种药物杀灭 ,并比较其成本效益。结果 :调查 12列列车 ,有蜚蠊侵害的占 58.3%。侵害场所包括硬座、软座、硬卧、软卧、餐车 ,以餐车密度最高。所用气雾剂、喷雾剂、毒饵及烟雾剂 4种剂型药物 ,杀灭率均在 93%以上。结论 :列车蜚蠊侵害较为严重 ,4种剂型药物均有良好灭蟑效果 ,以毒饵所耗人力、成本最少 Objective: To explore the invasion of cockpit in passenger trains and its chemical control effect, and to screen efficient and cheap insecticides. Methods: The density of cockroaches was investigated by the method of drug challenge, and then killed by 4 drugs. The cost-effectiveness was also compared. Results: In the survey of 12 trains, cockroaches attacked 58.3%. Infringement places include hard seat, soft seat, hard sleeper, soft sleeper, dining car, the highest density dining car. Aerosol, aerosol, bait and aerosol agents used in four formulations, the killing rate of more than 93%. Conclusion: The cockroach train is seriously infested, and all the four kinds of drugs have a good effect of killing cockroaches, which consumes less manpower and costs