棉花蚜虫是棉田蚜虫类的统称,主要有棉蚜、桃蚜、苜蓿蚜、棉长管蚜四种,尤以棉蚜发生为害最重。在我省植棉区般年份为中度发生,个别年份为中度偏重发生,严重为害年份平均减产幅度高达40.9％。由于棉花蚜虫种类多、繁殖力 Cotton aphid cotton aphid collectively, there are cotton aphid, peach aphid, alfalfa aphid, cotton long-aphid four kinds, especially in the worst occurrence of cotton aphid. In our province, the cotton-producing area is moderately year-by-year, moderately severe in some years, and the average yield reduction in severe damage is as high as 40.9%. Due to the variety of cotton aphids, fecundity