玉米青枯病,又称茎腐病、茎基腐病,是世界玉米产区普遍发生的一种土传病害,国内外学者先后对病原菌种类、发病规律、病原菌接种技术与抗病性、防治措施等方面进行了研究[1]。近年来该病在我国一些地区又有加重的趋势,严重地块发病率 Corn bacterial wilt, also known as stalk rot, stem rot, is a soil-borne disease commonly occurring in the corn producing areas in the world. Scholars at home and abroad have studied the types of pathogens, pathogenesis, pathogen inoculation and disease resistance, Measures and other aspects of the study [1]. In recent years, the disease is aggravating in some areas of our country and the incidence of serious land parcels