棉铃虫是棉花生产中的主要害虫,从1998年发生特大虫害以来,近两年又在我市棉区相继蔓延,棉农防不胜防,损失惨重。棉铃虫食性杂,寄主植物种类多,虫源广,除危害棉花外,还危害玉米、高粱、小麦、番茄、向日葵、豌豆、麻类等作物和野苋菜、苍耳等多种杂草。棉铃虫繁殖力强,一头雌蛾可产卵1000～2000多粒,卵散产分布面广。棉铃虫 Cotton bollworm is the main pest in cotton production. Since the pest occurred in 1998, it has spread one after another in the cotton area of ​​our city in recent two years. The cotton farmer is hard to guard against and has suffered heavy losses. In addition to harm cotton, cotton bollworm feeding habits, host plant species, wide source of insects, but also endanger corn, sorghum, wheat, tomatoes, sunflowers, peas, hemp and other crops and wild amaranth, Xanthium and other weeds. Cotton bollworm reproductive ability, a female moth can spawn more than 1000 to 2000, distributed widely distributed eggs. Cotton bollworm