青岛市黄岛区蟑螂密度调查研究

目的了解和掌握黄岛区2009年蟑螂的种群构成、密度和季节消长,为开展蟑螂防制工作提供科学依据。方法采用粘捕法调查,将捕获的蟑螂收回进行种类鉴定。结果 2009年共调查捕获蟑螂1411只,均为德国小蠊,蟑螂总密度为1.96只/张,蟑螂总侵害率为23.19%;其中成虫799只,占56.63%,若虫612只,占43.37%。以餐饮行业蟑螂密度和侵害率为最高,分别为1.88只/张和25.83%,季节消长有明显季节性,6～8月份蟑螂活动较活跃。结论基本掌握了青岛市黄岛区蟑螂的种群构成、密度和季节消长规律。

Cockroaches density Investigation in Huangdao District of Qingdao City

Objective To investigate the cockroaches population,density and seasonal variation in Huangdao district,and provide scientific evidence for cockroaches control.Method Catching the cockroach by gluemethod and then bringing back for classification.Results Totally 1411 cockroaches were caught in 2009.They were all B lattella germanica.The average index of density was 1.96 pieces.The average infestation rate reached 23.19%.And imago 799,account for 56.63%,nymphae 612,account for 43.37%.The index of density and infestation rate was the most severity in catering trades,which reached 1.88 pieces and 25.83%.Seasonal variation was obvious seasonal,and appeared the highest in June-August.Conclusions The cockroaches population,density and seasonal variationwere basically grasped in Huangdao district.