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目的了解重庆市蟑螂种群的分布和密度变化,为制定有效的蟑螂防治措施和预防控制虫媒传播传染病的发生提供科学依据。方法参照国家标准GB/T 23795-2009开展蟑螂密度监测工作。结果粘捕率为21.63%,侵害率为20.90%,密度为1.40只/张,密度指数为6.46只/张,各指标均呈逐年下降趋势;全年高峰出现在7-9月间,10月开始下降;蟑螂侵害率和密度最高的为餐饮店。结论目前重庆市蟑螂侵害程度比较严重,要降低其密度,化学防治仍是最重要的手段之一,同时应结合种群特点和密度消长规律进行科学防治。
Objective To understand the distribution and density changes of cockroach population in Chongqing and provide a scientific basis for effective prevention and control of cockroaches and prevention and control of the spread of infectious diseases. Methods Reference to national standards GB / T 23795-2009 cockroach density monitoring work. As a result, the sticking capture rate was 21.63%, the invasion rate was 20.90%, the density was 1.40 pieces / sheet and the density index was 6.46 pieces / sheet. The indexes all showed a declining trend year by year. The annual peak appeared in July-September, Began to decline; cockroaches infringement rate and density of the highest for the restaurant. Conclusion At present, cockroaches in Chongqing are seriously infested. To reduce their density and chemical control is still one of the most important measures. At the same time, scientific control should be carried out in combination with the characteristics of population and the growth and decline of density.