棉铃虫全年发生世代的多少,常随区域性的不同复盖寄主植物相和气候、天敌等因子的改变而互有差异,据1956年各地研究情况报导,在华北与新疆地区,棉田一般每年发生三代(北京二代)。关于棉田之前有无早春一代问题,因现有资料不足,未曾下有结论,各国学者对此看法亦不一致,如Logina Loginoki氏主张棉田之前还有一代(1954年),而格鲁森柯夫则 Cotton bollworm occurs throughout the year the number of generations, often with the regional coverage of the host plant phase and climate, natural enemies and other factors vary, according to research reports throughout 1956 in North China and Xinjiang, cotton fields generally each year Occurred three generations (Beijing second generation). There is no conclusion as to whether or not there was a problem with the early spring before the cotton field because of the lack of information available. Scholars from different countries also disagreed. For instance, Logina Loginoki claimed another generation before the cotton field (1954)