近年来,新疆由于棉花连茬种植、盲目引种、种植结构不合理等原因,导致病虫害在我区各生态棉区的危害日趋频繁和严重。导致我区棉花病虫害严重、频发的一个重要原因是棉花连茬种植。目前,有许多棉田已连茬种植棉花在5年以上了,多则在 In recent years, due to the continuous cotton planting, blind introduction, irrational planting structure and other reasons, the harm of pests in various ecological cotton areas in our district is more and more frequent and serious. Lead to my area of ​​cotton pests and diseases are serious, frequent an important reason is that cotton stubble planting. At present, there are many cotton fields that have been planted with cotton for more than five years, many of whom are there