棉花生育期间常受多种害虫为害,其中花铃期受盲蝽、棉铃虫、棉蚜、棉叶螨交替或集中为害,棉农大都于此期喷药防治.近年,由于农药品种不断更新,一些单位或个人盲目用药,药害屡屡发生.为此,我们于1985和1986年在本所进行了不同杀虫杀螨剂对花铃期棉株的药害试验,确定了部分药剂的安全施用量. During the cotton growing period, it is often harmed by many pests, of which cotton bollworm, cotton bollworm, cotton aphid and cotton spider mite are alternately or concentratedly damaged during the flower-boll stage, and most cotton farmers are spraying and controlling in this period.In recent years, due to the continuous updating of pesticide varieties, Units or individuals blindly medication, drug damage occurs frequently.To this end, we conducted in 1985 and 1986, the insecticide and acaricide on cotton bollworm injury test to determine the safe use of some agents .