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目的了解信阳市蟑螂种类、密度、季节消长情况,为信阳市消灭蟑螂提供科学依据。方法用粘捕法进行调查。结果在各类环境中共捕获蟑螂1 328只,其中德国小蠊1 193只,美洲大蠊135只,平均侵害率为7.36%,密度为0.65只/张。结论德国小蠊为优势种群,活动高峰在夏秋季,宾馆和餐饮单位密度较高,应加强蟑螂监测和防制工作。
Objective To understand the species, density and seasonal fluctuation of cockroaches in Xinyang and to provide a scientific basis for the elimination of cockroaches in Xinyang. Method using sticky catch investigation. Results A total of 1 328 cockroaches were captured in various environments, including 1 193 German cockroaches and 135 American cockroaches, with an average invasion rate of 7.36% and a density of 0.65 per animal. Conclusion Blattella germanica is the dominant species. The activity peak is in summer and autumn. The density of hotels and catering units is high, and the monitoring and control of cockroaches should be strengthened.