草蛉能捕蚜虫、介壳虫、蓟马、红蜘蛛及多种鳞翅目的小幼虫,是一种重要的害虫天敌。幼虫行动迅速,捕蚜凶猛,故有“蚜狮”之称。利用草蛉为人类除虫,早就为人们注意了。近年来,我国对草蛉的工作进行了群众性的研究,取得了初步的战果,如河南省民权县大搞群众性生物防治工作,调查了当地天敌数量变化情况,观察了草蛉的生活习性,对应用草蛉防治棉蛉虫取得了“春捕卵虫搞饲养,成、 Grasshopper can catch aphids, scale insects, thrips, spider mites and a variety of Lepidoptera small larvae, is an important pest natural enemies. Larvae act quickly, catching aphids ferocious, so “aphid lion” said. The use of weeds for human inseminations has long been people’s attention. In recent years, our country conducted a mass study on the work of grass weeds, and achieved initial success. For example, civil rights counties in Henan Province vigorously conducted mass biological control work, investigated the changes in the number of natural enemies, and observed the living habits of grass weeds , The application of cotton grass worm prevention and control of cotton insects made "Spring eggs trap engage in breeding, into,