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为了证实草地螟Loxostege sticticalis L.(鳞翅目:螟蛾科)由我国华北越冬区向东北迁飞危害的假说并提供直接的证据,采用网捕成虫喷雾染料标记释放回收的方法,于2009年越冬代草地螟成虫盛发期间(6月1-4日)分别在内蒙古武川县(41.07°N,111.42°E)和察右中旗(41.13°N,112.58°E)的6个标放点共标记当地越冬代草地螟成虫约181万头并自然释放。标记释放后,在东北、西北和华北11个草地螟常发省(市、区)组织各级监测预警部门利用虫情测报灯、捕虫网和性诱剂诱捕器等多种器械进行回收,先后于2009年6月7-29日在内蒙古科右中旗、乌兰浩特、扎兰屯分别回收到由察右中旗标记释放的成虫9头,在辽宁省北票市回收到由武川县标记释放的成虫1头。标记释放点至回收点直线距离为725～1117km。这是迄今为止世界上确认的草地螟最远迁飞距离。这些证据不仅证实了我国越冬代草地螟成虫能从华北迁往东北危害,而且为进一步了解草地螟的种群动态规律,改善草地螟的预测预报技术提供了重要的科学依据。
In order to confirm the hypothesis that Loxostege sticticalis L. (Lepidoptera: Pyralidae) is harmful to migrate northeastern China from the overwintering area in North China and provide direct evidence, Overwintering generations of the grass borer adults during the full-scale (June 1-4) were in Inner Mongolia Wuchuan County (41.07 ° N, 111.42 ° E) and Chazhongzhongqi (41.13 ° N, 112.58 ° E) A total of about 1.81 million adult wintering grass beetles were locally tagged and naturally released. After the release of the marker, the monitoring and early warning departments of 11 grass spot borer provinces (cities, districts) in Northeast, Northwest and North China were reused by various instruments such as insect detection lamp, insect netting and sex attractant traps, On 9 - 29 June 2009, 9 adults were released from Kezuozhong Banner, Wulanhaote and Zalantun, respectively, and released in Beipiao, Liaoning Province, for release by the Wuchuan County marker Adult 1 head. Mark the point of release to the recovery point of the linear distance of 725 ~ 1117km. This is by far the world’s largest identified grass miner fly away. These evidences not only confirmed that the overwintering S. grisea adult could migrate from North China to Northeast China, but also provided important scientific evidences for further understanding the population dynamics of Grasshoppers and improving the prediction and forecasting techniques of them.