异色瓢虫的成、幼虫均能取食多种蚜虫和蚧虫,是农林害虫的重要天敌之一。为了更有效地发挥其在植物保护中的积极作用,几年来省内、外不少单位先后开展了关于该虫的人工繁殖技术的研究工作,并取得了一定进展。有关人工饲料、饲养的温、湿度条件等都在不同程度上得到了解决。目前存在的一个主要问题就是取卵问题,因为人工饲养异色瓢虫成虫,其卵往往产于寄生蚜虫的植物叶片或养虫箱的器壁上,因异色瓢虫的卵体很小,且壁薄,略加擦碰就会破损,这样就给收集造成很大困难,虽然产卵量很高, Color ladybug into, larvae can feed on a variety of aphids and scale insects, is one of the important natural enemies of agricultural and forestry pests. In order to exert its positive role in plant protection more effectively, many units inside and outside the province have carried out research on artificial propagation technology of this pest over the past few years and made some progress. About artificial diet, raising the temperature and humidity conditions are to varying degrees have been resolved. One of the main problems currently exists is the problem of ovulation. Because adults of Harmonia axyridis are raised by artificial feeding, the eggs are usually produced on the plant leaves or the wall of the feeding box of the parasitic aphids. Because the eggs of the heterochromous ladybug are very small, And thin wall, slightly rubbing will be damaged, so to collect a great deal of difficulty, although the amount of spawn is very high,