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目的了解兰州地区蟑螂消长规律,完成国家监测任务。方法粘捕法。结果捕获蟑螂31 258只,均为德国小蠊,2006-2010年农贸市场、宾馆、餐饮单位、居民社区和医院蟑螂密度分别为3.30只/张、4.50只/张、2.68只/张、3.86只/张、0.51只/张,侵害率分别为11.03%、33.56%、16.43%、18.89%、6.02%。蟑螂密度每年2～8月逐步升高,9～10月出现一高峰,侵害率的高峰出现在10月。结论应充分利用季节和气候变化规律对蟑螂消长的影响,结合环境治理开展蟑螂密度控制工作。
Objective To understand the law of growth and decline of cockroaches in Lanzhou and to complete the task of national monitoring. Method sticky capture method. Results A total of 31 258 cockroaches were captured, all of which were German cockroaches. The density of cockroaches in farmer’s market, hotels, catering establishments, residential communities and hospitals in 2006-2010 were 3.30, 4.50, 2.68 and 3.86 respectively / Zhang, 0.51 / Zhang, infringement rates were 11.03%, 33.56%, 16.43%, 18.89%, 6.02%. The density of cockroaches gradually increased from February to August every year, with a peak from September to October. The peak of the aggression rate appeared in October. Conclusions The influence of seasonal and climatic changes on the growth and decline of cockroaches should be fully utilized, and the control of cockroach density should be carried out in combination with environmental management.