玉米丝黑穗病是玉米主要病害之一。据1970年在辽阳市铧子公社韭菜台大队发病严重的地块调查,发病株率达70%以上。1971年在野老滩大队调查,一般病株率达3～10%,个别严重地块发病株率达40%,已成为影响玉米生产的严重问题。为了防止玉米丝黑穗病为害,去年我们应用了选择性内吸杀虫剂萎锈灵(浙江慈溪农药厂生产的20%乳剂)处理玉米种子,防治效果良好。 Corn smut is one of the main diseases of corn. According to 1970, in Liaoyang City, the sub-commune leek brigade serious disease block survey, the incidence of strains of more than 70%. In 1971 in the investigation of the brigade of Old Beach, the general strain rate of 3 to 10%, individual serious block incidence rate of 40%, has become a serious problem affecting corn production. In order to prevent corn smut damage, last year we applied a selective systemic insecticide Zilu Ling (Zhejiang Cixi Pesticide Factory production of 20% emulsion) treatment of corn seeds, control effect is good.