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苹果黄蚜,俗名腻虫。在冬季干旱年份易大量发生。它主要是吸食汁液,危害苹果树的新叶、嫩梢,被害叶片常呈淡黄色并向叶背横卷。该虫1年发生10余代,以卵在枝梢的芽旁或粗皮裂缝内越冬。翌年4月开始孵化,并产生有翅或无翅胎生雌蚜。6～7月为繁殖高
Apple yellow aphid, common name greasy worm. In the winter drought prone to a large number of years. It is mainly to drink juice, endanger the new leaves of apple trees, tender shoots, leaves were often pale yellow victim to the leaves and roll back. The insects occurred more than 10 generations in 1 year, with eggs in the shoots buds or rough skin cracks in winter. The following year in April began to hatch and produce winged or wingless viviparous female aphids. 6 to July for breeding high