Abstract: [Objective] In order to provide the effective control of Agrotis segetum in Tajikistan, the occurrence and population dynamics of A.segetum in Xinjiang and Tajikistan were compared and the potential reasons were discussed for the population succession and declination in Xinjiang, China.[Method]A.segetum moths were monitored by light traps in Shihezi (from 1980-2011) and Tajikistan (2014).The occurrence and population variation were analyzed according to the monitoring data.[Result]In Tajikistan, A.segetum developed 3-4 generations in a year and could be caught up to 90 individuals per light per night at the peak time.In most places of Xinjiang, A.segetum developed 3 generations yearly, in some parts of southern Xinjiang, it could develop 3-4 generations and while in few areas of northern Xinjiang it could develop 1-2 generations.At the peak timing, A.segetum could be caught less than 40 individuals per light per night, which indicated that A.segetum, were no longer the major insect pests in Xinjiang.[Conclusion]A.segetum can develop 1-2 generations more in Tajikstan than in Xinjiang.A.segetum can develop 3-4 generations per year in Tajikistan, while 3 generations yearly in most places of Xinjiang.A.segetum trapping moths in Tajikistan are far more than in Xinjiang region of China at the fastigium.

摘要： [目的]对黄地老虎(Agrotis segetum Schiff)在我国新疆,塔吉克斯坦的发生世代及种群动态进行比较,研究我国新疆黄地老虎种群演替原因,为塔吉克斯坦黄地老虎防治提供技术服务.[方法]应用测报灯对我国新疆石河子(2006、2009~2011),塔吉克斯坦(2014)农田黄地老虎进行监测,分析我国新疆,塔吉克斯坦黄地老虎的发生世代及种群动态.[结果]在塔吉克斯坦,黄地老虎一年发生3~4代,高峰期单灯诱蛾量达到90头;黄地老虎在我国新疆大部分地区1年发生3代,南疆个别地区发生3~4代,北疆少数地区发生1~2代,高峰期单灯诱蛾量<40头/灯,已不再作为防治对象.[结论]黄地老虎在塔吉克斯坦平均每年比我国新疆多发生1~2代,塔吉克斯坦一年发生3~4代,我国新疆大部分地区1年发生3代.在塔吉克斯坦,黄地老虎成虫高峰期诱蛾量远大于我国新疆地区.