棉铃虫越冬蛹的调查近年来棉铃虫在黄淮海棉区严重发生，因此调查好田间越冬蛹的存量，对翌年第一代棉铃虫发生的正确预报，至关重要。从调查中我们发现田间的越冬蛹，除棉铃虫外，尚有斜纹夜蛾、甜菜夜蛾、烟草夜蛾、甘蓝夜蛾和粘虫等类似棉铃虫的多种虫蛹，不同作物田的... Overwintering pupae of cotton bollworm In recent years, cotton bollworm occurred seriously in Huang-Huai sponge area. Therefore, investigating the stocking of overwintering pupae in the field is crucial for the correct prediction of the first generation cotton bollworm in the following year. From the survey we found that the overwintering pupa in the field, in addition to cotton bollworm, there are Spodoptera, beet armyworm, tobacco budworm, cabbage nymphs and armyworms and other similar cotton bollworm a variety of pupae, different crop fields. ..