我国是世界上重要的产棉大国，棉花是国计民生的重要物资，棉花产量的高低不仅对国际国内棉纺织工业具有举足轻重的影响，而且棉花种植是我国广大棉农的传统、支柱性产业。近年来，随着社会生产。生活需求的不断增长，棉花的供给日趋紧张。而与此同时，在我国广大棉区，棉铃虫 China is an important cotton producing country in the world. Cotton is an important material for national economy and people’s livelihood. The level of cotton production not only plays an important role in the domestic and international cotton textile industry, but also is the traditional and pillar industry of cotton farmers in our country. In recent years, with the social production. The growing demand for life, cotton supply increasingly tense. At the same time, in our vast cotton area, cotton bollworm