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河北省是我国苹果主产区，现有苹果树栽培面积３８ｈｍ２，年产量１５亿ｋｇ以上，分别占全省果树总面积和总产量的３１７％和３０７％。近１０余年来，由于品种结构、栽培管理技术及病虫害防治方法的改变，苹果园主要病虫害发生种类及危害程度也出现明显变化。现将河北省
Hebei Province is the main apple producing area in China. The existing cultivated area of apple trees is 38hm2 and the annual output is over 1.5 billion kg, accounting for 317% and 307% of the total area of fruit trees and total output of the province respectively. In the recent 10 years, due to the variety structure, cultivation and management techniques and the change of pest and disease control methods, the occurrence and damage degree of major pests and diseases in apple orchard also changed obviously. Now in Hebei Province