信阳市蟑螂密度监测及侵害现况的调查研究

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。

Investigation and research on the density of cockroaches and disoperation in Xinyang City

Objective To understand the type,density and seasonal fluctuation of cockroach in Xinyang City and provide scientific basis for the elimination of cockroach.Method Sticky traps method.Results We had captured 1 328 cockroaches in all kinds of environments,among which 1 193 were blattella germanica and 135 were periplaneta americana.The average disoperation rate was 7.36%,and the density was 0.65 cockroach per piece of paper.Conclusions Blattella germanica was the predominant species,and was active in summer and autumn.There were high density of cockroaches in hotels and restaurants,therefore,this units should strengthen the monitor and control of cockroach.