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1980年以来,对冀南平原区主要瓢虫种类:七星瓢虫(Coccinella septempunctataLinnaeus))、龟纹瓢虫(Propylaea japonica(Thungberg))、多异瓢虫(Adonia variegata(Goeze))的消长动态,及其对棉蚜的控制作用进行了调查。每年4～11月,对油菜、小麦、玉米、谷子、紫穗槐、棉花等地,作了系统观察。采用5点取样,5～10天一次定点调查。密植作物查10平方米,稀植作物查100株。并分别调查了喷农药和不喷农药的棉田,兹将结果报道如下。
Since 1980, the dynamics of the growth and development of major lady beetle species in the plain of Jinan Plain: Coccinella septempunctata Linnaeus, Propylaea japonica (Thungberg) and Adonia variegata (Goeze) And its control of cotton aphid were investigated. From April to November of each year, systematic observation was conducted on rape, wheat, corn, millet, Amorpha fruticosa, cotton and other places. 5 sampling, 5 to 10 days a fixed-point survey. Closely planted crops check 10 square meters, rare plant check 100 plants. And were investigated pesticide spray and non-sprayed cotton fields, the results will be reported as follows.