1985年7—9月份,我们在风景区选择了二个特种营业性质的大型餮馆和别墅型宾馆,采用综合性措施进行蟑螂防制工作。经三个月的定期定点观察,蟑螂平均密度指数由38.36只下降到0.76只,下降率为96.98％,有效地控制了蟑螂的危害。对照区蟑螂自然下降率为9.78％,二者比较差异非常显著,取得一定效果,现将结果报告如下。 From July to September 1985, we selected two large-scale halls and villa-type hotels in the scenic area for special cockroaches prevention and control work. After three months of regular observation, the average index of cockroach dropped from 38.36 to 0.76, the rate of decrease was 96.98%, effectively controlling the harm of cockroach. The control area cockroaches natural decline rate of 9.78%, the difference between the two is very significant, and achieved some results, the results are reported as follows.