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七星瓢虫(Coccinella Septemptemputata L.)是贵州省麦蚜的主要天敌之一。对于七星瓢虫食蚜力的测定已有不少报导,但都未考虑蚜虫不同密度对瓢虫食蚜力的影响。为此,我们于1988年进行了七星瓢虫雌成虫对麦无网长管蚜Metopdophiumdirhodum(Mordvilko)若虫及成虫(无翅型)密度的功能反应试验,为进行小麦蚜虫的综合治理提供参考。现将试验结果报告如下。
Coccinella Septemptemputata L. is one of the main natural enemies of wheat aphids in Guizhou Province. There has been a lot of reports on the determination of the ladybug aphid in the field of the ladybug, but all of them have not considered the effect of different density of the ladybug on the ladybug. Therefore, in 1988, we carried out the functional reaction test on the density of Metopdophium dirhodum (Mordvilko) nymphs and adults (wingless type) of the female adult Apis cerana cepacia, providing a reference for the comprehensive management of wheat aphids. The test results are reported below.