前言我国北方果树重要害虫,总数约有100多种(1)。对于如此众多的种类,存在着两类果虫归类系统。绝人多数的作者,(1)(2)(3)(4)(5)(6)都是按果树类别,分为苹果害虫、梨害虫、葡萄害虫……等。仅个别作者(7),将苹果害虫分为食心虫类、卷叶蛾类、红蜘蛛类……等。以上作者均未曾将自己的归类同各类害虫防治的基本原则联系起来进行充分的论述。 Introduction North China fruit tree pests, the total number of about 100 kinds (1). For so many species, there are two types of fruit worm classification system. Mostly author, (1) (2) (3) (4) (5) (6) is divided into apple tree pests, pear pests, grape pests ... and so on. Only individual authors (7), the apple pests are divided into heart worms, leaf roller moths, red spiders ... ... and so on. None of the above authors have adequately discussed their own categorization with the basic principles of pest control.