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山楂粉蝶 Aporia Crataegil,是为害蔷薇科果树和林木的害虫,但主要为害山楂树。在我省鞍山、辽阳地区发生较多。1983年鞍山郊区唐家房乡末云山村山楂树被害株率达100%。受害严重树占15%。此虫为害严重时可把全树的花芽、叶芽和花蕾吃掉,造成秃枝光树,不仅当年没有产量而且影响来年及以后的产量和树势。若连续为害几年,则可致使枝条或树体死亡。近年来,此虫在我省山楂产区发生危害日趋严重,极大地威胁山楂生产的发展。为摸清其发生规律,寻求有效的防治措
Hawthorn Aporia Crataegil, pests that injure Rosaceae fruit trees and forest trees, but mainly hawthorn damage. Anshan in our province, Liaoyang area occurred more. In 1983 Anshan suburb Tangjiafang Township Yunshan Hawthorn trees rate of 100%. Serious tree damage accounted for 15%. This pest serious damage can be the whole tree flower buds, buds and buds eaten, resulting in bald bare tree, not only the year without the output and the impact of the coming year and future production and tree potential. If the continuous damage for several years, you can cause the branches or trees to die. In recent years, the insects hawthorn producing areas in our province more and more serious harm, greatly threatening the development of hawthorn production. To find out the law of occurrence and seek effective measures to prevent and cure