在毛泽东思想的光辉照耀下,黑龙江省林口县五林公社青西大队,自1966年以来,对玉米黑穗病开展了群众性的苗期鉴别活动。他们根据有些老农的经验,对玉米病苗仔细观察特征,结合间苗,拔除病株。通过几年来的实践,初步掌握了玉米黑穗病的苗期鉴别方法,鉴别 Under the shining of Mao Zedong Thought, the Qingxi Battalion of Wulin Commune, Linkou County, Heilongjiang Province, has conducted mass identification of seedling stage for maize smut since 1966. Based on the experience of some peasants, they carefully observed the characteristics of corn seedlings, combined with thinning, and diseased plants were removed. After several years of practice, initially mastered the maize smut seedling identification methods, identification