前言草地螟Loxostege sticticalis L.是典型草原区牧草和饲料作物的重要害虫之一。笔者1976年到1977年在西北和内蒙古等地对主要牧草害虫考察时发现,在高山草原、荒漠和典型草原地带,均有草地螟不同程度的发生和为害。其中以典型草原发生较为普遍,为害也较严重。 Introduction Loxostege sticticalis L. is one of the major pests of pasture and forage crops in typical grassland areas. The author from 1976 to 1977 in Northwest China and Inner Mongolia and other places on the main forage pests found that in the alpine grasslands, deserts and typical grassland areas, have different degrees of occurrence and damage Meadow Borer. Among them, typical grassland occurrence is more common and the damage is more serious.