国内外果树螨类的研究工作是近三十年来才发展起来的。原先螨类在果树上是不重要的害虫;但自第二次世界大战后,由于广泛、大量地应用有机合成杀虫剂以防治果园中食心虫的结果,杀灭了大量的天敌,遂引起螨类的严重为害,并且对于某些杀虫剂产 The research work on fruit trees and mites at home and abroad was developed in the last three decades. The original mites were unimportant pests in the fruit trees; however, since the Second World War, large numbers of natural enemies were killed due to extensive and extensive application of organic synthetic insecticides to control gummy worms in orchards, causing mites Seriously harmful to the species, and for some pesticide production