苹果蚜是苹果树上的主要害虫,还可为害梨、山楂、沙果及绣线菊等,在我国尤其是西北地区苹果产区发生较多。以成蚜和若蚜聚集于果树新梢、嫩芽与叶片背面,吸取汁液,导致叶片向下弯曲或横卷,严重时影响新梢生长,引起早期落叶,减弱树势,降低了果品的质量与产量。1发生规律苹果蚜一 Apple aphid is the main pest on the apple tree, but also for pears, hawthorn, sand and spiraea, etc., especially in the apple producing areas in Northwest China occurred more. As aphids and if the aphids gathered in the fruit shoots, shoots and the back of the leaves, draw juice, resulting in downward bending or lateral leaf, affecting the shoot growth in severe cases, causing early deciduous, weaken the tree vigor and reduce the quality of fruit With production. An occurrence of a law Apple aphid one