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棉铃虫HelicoverPaarmige。H6bner是我国黄河、长江流域棉区的常发性害虫，1996年在民和县玉米带状田大面积发生为害，为我县历史罕见，预测近几年将在我县黄河、涅水两岸呈持续为害趋势，将对我县的农业生产带来严重的威胁。1发生概况及特点1996年全县推广玉米带状田1400hm2，
HelicoverPaarmige. H6bner is a pest in the Yellow River and the Yangtze River cotton area in China. In 1996, it occurred in a large area in Minhe corn belt. It was a rare occurrence in our county. It is predicted that in recent years, Continued damage trend, will bring serious threats to the agricultural production in our county. 1 Occurrence and characteristics In 1996 the county to promote corn belt 1400hm2,