谷子是山西省的主要粮食作物之一。在我省为害谷子的蛀茎害虫主要有:玉米螟、粟灰螟、粟杆蝇和谷跳(虫甲)等。这几种蛀谷害虫的为害程度常依地势、气候等环境条件而异,但据几年的调查了解,玉米螟和粟灰螟则是分布广、为害重的主要种类。这两种蛀茎螟虫虽然全省普遍发生,但其为害的程度则依气候和地势等环境条件显然有异。概括说,粟灰螟主要发生于山地、旱坡地以及常年比较少雨的雁北川地和山区,而在本省的几个主要盆地,如忻定盆地,忻县和雁北西部一些地区、晋中盆地、以及晋南盆地等,在谷田常年多以玉米螟居于 Millet is one of the main food crops in Shanxi Province. The moth-eaten stem pests infesting the millet in our province are mainly corn borer, corn borer, poplar fly and valley hopper. These types of borer pests often depend on the topography, climate and other environmental conditions vary, but according to several years of investigation, corn borer and millet borer is widely distributed, the main types of heavy damage. Although both species of stem borers generally occur in the province, the degree of harm depends on the climatic and topographical conditions. In summary, the most common occurrence occurred in mountainous, dry-slope and Yanbeichuan and mountainous areas with relatively low rainfall all year round. In several major basins in this province, such as Xinding Basin, Xinxian and some areas in western Yanbei, , As well as the Jinnan Basin, etc., live in corn fields more than corn borers perennial