为配合我市创建国家级“卫生城市”努力降低“四害”密度,1993年起,我们对青岛市市区蝇类密度及季节消长情况进行了监测。现将监测结果报告如下。1 方法:采用诱蝇笼法。规格为25×25×40(cm)的方形天幕式诱蝇笼。诱饵为糖、醋适量混合而成。专人定时、定点放置诱饵,次日用1%DDV杀死笼内蝇类,将其放入容器、编号并带回实验室分类、计数。 In line with the city to create a national “health city” efforts to reduce the “four pests” density, since 1993, we conducted a survey of urban flies in Qingdao density and seasonal growth and decline were monitored. The monitoring results are reported below. 1 method: using fly trap method. Square canopy fly trap of size 25 × 25 × 40 (cm). Bait sugar, vinegar mixed from the right amount. At regular intervals, the bait was placed on site and the cage flies were killed with 1% DDV the next day, placed in containers, numbered and brought back to the laboratory for classification and counting.