为探索棉铃虫成虫在新疆地区是否具有迁飞性,在新疆北部石河子垦区146团和147团、乌苏、新疆南部阿克苏地区(阿克苏市、阿瓦提县、12团)和麦盖提,监测了棉铃虫田间卵巢发育和交配频率。结果表明:雌蛾卵巢发育到1级时开始出现交配,且交配次数与卵巢发育级数呈显著正相关;146团、147团、乌苏、阿克苏第3代棉铃虫以及阿瓦提县第3代和第4代棉铃虫卵巢发育级别3级以上的个体均占到65%以上,表明其种群主要由外地迁入;高峰期棉铃虫雌蛾平均交配率和交配频率分别为81.63%和1.96。各监测区域棉铃虫雌蛾的交配率和雌雄比例均符合迁入种群的生理特征,表明新疆地区棉铃虫存在迁飞。探明棉铃虫在新疆地区的迁飞和交配情况将为该地区棉铃虫的区域防治提供重要科学依据。 In order to explore whether the adults of Helicoverpa armigera migrate in the Xinjiang region, 146 groups and 147 groups in Shihezi reclamation area in northern Xinjiang, Aksu region (Aksu city, Awat county, 12 groups) The cotton bollworm ovary development and mating frequency. The results showed that the mating of the female moth ovary developed to the first grade, and the mating frequency was significantly and positively correlated with the ovarian developmental grade. The 146th, 147th, Wusu and Aksu 3rd generation bollworm and the third The average ovary rate and mating frequency of H. armigera were 81.63% and 1.96, respectively, at the peak of ovarian development in the 4th and 4th generation. The mating rate and the ratio of male to female of H. armigera in each monitoring area all accorded with the physiological characteristics of the migratory population, indicating that the cotton bollworm migrated in Xinjiang. Probing the migration and mating of cotton bollworm in Xinjiang will provide an important scientific basis for the regional control of cotton bollworm in this area.