目前,利用瓢虫防治蚜虫还是处于自然利用阶段。如合理的利用瓢虫自然资源,必须研究瓢虫的趋光性和迁飞规律。为此,我所几年来对我区主要食蚜瓢虫的趋光迁飞进行了断续的研究,初报如下:一、安阳地区食蚜瓢虫的种类和迁飞利用时机我区棉田观察到的食蚜瓢虫有七星瓢虫、多异瓢虫、异色瓢虫、龟纹瓢虫和二星瓢虫。从发生及食蚜量看)以七星瓢虫为主,多异瓢虫和龟纹瓢虫次之,二星瓢虫和异色瓢虫在棉田的数量很少.常年棉田在5月上、中旬之间始见瓢 At present, the use of ladybugs to control aphids or in natural use stage. If we use ladybugs’ natural resources reasonably, we must study the ladybug’s phototaxis and migration rules. To this end, I am a few years my area of ​​the main aphid ladybug phototransmission conducted intermittent research, the first report is as follows: First, the Anyix area, the species of ladybugs ladybirds and the timing of the use of migratory cotton fields observed in our area The ladybugs have seven ladybugs, Ladybugs, Ladybugs, Ladybugs, Propylaea americana and Ladybugs. From the occurrence and the amount of food aphids observed) to Ladybird-based ladybirds, polygamous ladybugs and tortoise ladybugs followed by two ladybugs and the number of ladybirds in the cotton field is very small. Perennial cotton fields in May, mid See the scoop between the beginning