红铃虫是我县蕾铃期常发生的主要害虫之一,每年均可造成不同程度的危害。幼虫蛀食蕾铃,一代造成蕾花脱落,二、三代蛀食棉籽,造成僵瓣,直接影响棉花的产量和品质。为探明一代造成的虫害花和棉花脱落、成铃的关系以及二、三代为害对产量和品质的影响,以便准确地估计红铃虫对棉花所造成的经济损失,制订经济允许的防治指标,以提高经济效益 Red bollworm is one of the main pests in our county buds, which can cause different degrees of harm every year. Larvae eaten buds, the generation of buds led to fall off, two or three generations of cottonseed eaten, resulting in stiff petals, a direct impact on cotton yield and quality. In order to ascertain the pest flower and cotton shedding, boll forming and the impact of two or three generations of pests on the yield and quality caused by a single generation, in order to accurately estimate the economic loss caused by the pink bollworm on cotton and make the economic control index, To improve economic efficiency