棉花烂铃病是由多种病菌共同作用而引发的复合性病害 ,是棉花生产上的 1种重要病害 ,目前尚无特效防治方法。棉花烂铃病的发生严重影响棉花产量及品质 ,一般年份烂铃病造成的产量损失为 1 0 %～ 1 5%,严重年份损失在 50 %以上。近年来 ,我们围绕棉花烂铃病的发生规律及综合防治 Cotton boll bell disease is a complex disease caused by the joint action of a variety of germs, is an important disease in cotton production, there is no effective control methods. The occurrence of cotton bollworm disease seriously affects the yield and quality of cotton. In general, the yield loss caused by bad bollworm is 10% ~ 15%, and the loss in severe years is more than 50%. In recent years, we focus on the occurrence of cotton boll disease and comprehensive prevention and control