草地螟的发生为害与监测预警技术研究进展

Progress in research on monitoring and forecasting the occurrence of the beet webworm,Loxostege sticticalis

草地螟Loxostege sticticalis L.是我国北方农牧区重要的迁飞性害虫,具有突发性、暴发性和周期性危害的特点,随着第4个暴发周期的来临,将会给我国北方农牧业的安全生产带来很大的威胁。为准确掌握草地螟在我国的发生与迁飞为害规律,提高对重大迁飞性害虫的灾变预警能力,本文综述了草地螟在我国及周边国家的时空分布,发生为害、迁飞规律和监测预警等方面的研究进展,并对草地螟的监测预警技术进行了展望,以期为第4个暴发周期草地螟的监测和防控提供技术支持。

The beet webworm,Loxostege sticticalis L.,is an important migratory insect pest of agricultural crops and livestock forage in northern China.Although previously not a significant pest,three recent outbreaks of the beet webworm caused significant economic losses.The approach of the fourth outbreak period therefore poses a serious risk to agriculture and animal husbandry in northern China.Obtaining more accurate information on the occurrence and migration of the beet webworm,and improving forecasting capability for this important migratory pest is therefore both timely and important.This paper reviews the distribution and outbreak regions of the beet webworm,its population dynamics,the kinds of crop damage it causes and its migration.Monitoring and forecasting techniques used in China and neighboring countries are assessed,and suggestions for improving monitoring and management in the fourth outbreak period are provided.