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草地螟是一种危险性害虫,五十年代曾在山西、河北、内蒙大发生。六十年代经过三省(区)联防,基本得到控制。但七十年代又有回升,为害范围扩大到甜菜、胡麻等经济作物。1979年是我区解放后发生与为害最严重的一年,天镇、阳高、左云、右玉、平鲁、大同、浑源、应县等县、市越冬代大发生,全区受害面积达75万多亩,天镇县兰玉堡大队1,200亩玉米下部叶片基本吃光,200亩甜菜叶片被吃掉70-80%,1,016亩茴香损失60-70%,5亩胡萝卜被咬成秃顶。
Meadow borer is a dangerous pest, in the fifties in Shanxi, Hebei, Inner Mongolia occurred. In the sixties, the three provinces (autonomous regions) have been jointly controlled and basically controlled. However, there was a recovery in the 1970s, expanding its scope to beet, flax and other cash crops. The year 1979 was the most serious one that took place after the liberation of our region. The towns of Tianzhen, Yanggao, Zuoyun, Youyu, Pinglu, Datong, Hunyuan, Ying County and other counties, An area of 750,000 acres, 1,200 acres of Tianzhen County Ranger Fort base corn leaves basically eaten, 200 acres of beet leaves were eaten 70-80%, 60 acres of 1,016 acres of fennel lost, 5 acres of carrot was bite into Bald