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山楂绢粉蝶(Aporia crataegi L.)又名树粉蝶、苹粉蝶。分布东北三省、内蒙、陕、甘、晋、冀等省(区)。为害苹果、山楂、梨、杏、桃、杨、柳、榆、落叶松等几十种木本植物。近几年来,东北中部地区,果园遭受该虫严重为害。苹果、山楂、梨有虫株达34—40.6％,每株平均有虫26—47头,最多110头。造成果树长势日趋衰弱,果实产量骤减、质量降低,经济损失严重。用药物防治,化钱多,效果差,杀伤天敌,污染环境,毒化果实,弊多利少。调查发现,山楂粉蝶有8种寄生峰,对抑制其为害,起重要作用。
Hawthorn aporia crataegi (Aporia crataegi L.), also known as tree butterfly, apple butterfly. Distribution of the three northeastern provinces, Inner Mongolia, Shaanxi, Gansu, Shanxi and Hebei provinces (regions). Damage to apples, hawthorn, pear, apricot, peach, poplar, willow, elm, larch dozens of woody plants. In recent years, the central part of northeast China has been seriously damaged by orchards. Apple, hawthorn, pear and insect strains reached 34-40.6%, an average of 26-47 insects per plant, up to 110 heads. As a result, the growth of fruit trees is becoming weaker and weaker, the output of fruits is reduced, the quality is reduced, and the economic losses are serious. With drug prevention and control, more money, the effect is poor, killing natural enemies, pollute the environment, poisoning the fruit, more harm than good. The survey found that hawthorn butterfly has 8 kinds of parasitic peaks, to inhibit its damage, play an important role.