兰州市某涉外四星级宾馆多年来深受蟑螂危害。以往宾馆自行采取有机磷、拟除虫菊酯等类药物进行喷洒防治 ,但杀灭效果不甚理想 ,而且员工反映蟑螂密度有逐渐升高趋势 ,直接影响宾馆的卫生面貌。为了解该宾馆蟑螂的种群分布及侵害程度 ,给防制工作提供科学依据 ,2 0 0 2年 5月份 Lanzhou a foreign four-star hotel over the years by the cockroach hazards. In the past, hotels themselves adopted organophosphorus and pyrethroid drugs for spraying prevention and treatment, but the killing effect was not very satisfactory. Moreover, employees reported that the density of cockroaches gradually increased and directly affected the hotel’s health. In order to understand the population distribution and invasion of cockroaches in this hotel, provide a scientific basis for prevention and control work. In May 2002