贮粮螨类是仓虫中个体最小的一类害虫,能危害各种谷物、油料种子、干果和动物性贮藏物。成虫体长一般在1毫米以下,其卵、幼虫和若虫更为微小,肉眼每不易见到,常随粮粒传输各地,因此分布极广,其中许多种已成为世界共有的种类。根据张国樑(1958)调查报导,在全国各地区,各种谷物、油料、仓库、加工厂中几乎都有螨类存在。不但分布普遍,而且数量十分惊人。随着“四无粮仓”运动的开 Stored grain mites are the smallest group of individual insects in the cercariae that can endanger various grains, oilseeds, dried fruits and animal stores. Adult body length is generally less than 1 mm, the eggs, larvae and nymphs are even smaller, the naked eye is not easy to see, often with the grain transfer around, so widely distributed, many of which have become the world’s common species. According to the survey conducted by Zhang Guoliang (1958), almost all of the mites exist in various cereals, fuel oil, warehouses and processing plants across the country. Not only widespread, but the number is very alarming. With the “No Barns” campaign opened