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桃蚜(Myzus persicae Salzer)过去在棉花上未造成危害。1989年它在喀什地区严重发生,主要集中在叶背吸食汁液,使棉株发育受阻。在喀什地区,桃蚜除以成、若蚜在温室或大棚蔬菜上越冬外,还可以卵在室外桃树芽腋和裂缝处越冬。越冬卵3月下旬孵化,4月底5月初有翅蚜产生并迁入棉田,6月上旬蚜量达高峰,小麦收获后田间天敌迁至棉田,蚜量急剧下降。当棉田桃蚜单独发生且数量不大时可不防治;高温时节人工抖动棉株可使其落地烫死。
Myzus persicae Salzer used to be harmless to cotton. In 1989 it occurred seriously in Kashgar region, mainly concentrated in the leaf back suck juice, cotton growth was blocked. In the Kashgar region, the green peach aphid divided by Cheng, if the winter aphids in the greenhouse or greenhouse vegetables, you can also eggs in outdoor peach axillary axillary and cracks at the winter. The wintering eggs hatch in late March, and the winged aphids emerge and move into the cotton fields at the end of April and early May. The aphids peaked in early June. After the wheat harvest, the natural enemies moved to the cotton fields and the amount of aphids dropped sharply. When the cotton aphid occurred alone and the amount of small aphids can not prevent; high temperature season artificial shaking cotton plant can make it to the ground to burn.