中国是世界上最大的棉花生产国和消费国，作为重要的民用和战略物资，棉花生产始终得到国家的高度重视。九十年代以来，棉铃虫在我国大部分棉区持续性大暴发，仅１９９２年，长江流域棉区净减产１０万吨，黄河流域棉区净减产１５２万吨，棉铃虫造成的棉花减产幅度达１７％... China is the largest cotton producer and consumer in the world. As an important civilian and strategic material, cotton production has always been given high priority by the country. Since the 1990s, the cotton bollworm continued its outbreak in most cotton areas in our country. In 1992 alone, the cotton cut in the Yangtze River valley was reduced by 100,000 tons and that in the Yellow River cotton area was reduced by 1.52 million tons. The cotton reduction caused by the cotton bollworm reached 17% ...