从1993年开始,我们采用了麦田扫网法扫捕第一代棉铃虫幼虫,4年的扫网结果表明,最低捕虫率为61.4%,最高94.7%,平均捕虫率为86.6%。此法防治不亚于化学防治,且简便易行,经济有效,每人每天可网捕8～10亩。捕捉网的制作捕捉网可用纱布或编织袋等材料制作,可做成圆形或椭圆形,口径一般不超过40厘 Since 1993, we have used the wheat field sweep method to sweep the first generation of cotton bollworm larvae. The results of 4 years of scanning showed that the lowest insect colonization rate was 61.4%, the highest was 94.7% and the average trap rate was 86.6%. This method of prevention and control no less than chemical control, and simple, cost-effective, netting per person per day 8 to 10 acres. Capture net production capture net available gauze or woven bags and other materials, can be made into a round or oval, caliber generally not more than 40%