水稻白叶枯病是一种细菌性病害,在江苏省大部分稻区都有发生。解放后,在1954、1956、1957、1962、1965和1971年六次大流行。1965年之前主要在苏州、镇江和扬州等稻区危害较重。近年来,随着旱改水的面积的扩大,病区有从南向北蔓延扩大的趋势,为害程度逐年加重。发病后一般减产2—3成,重病田减产达5成以上,成为夺取水稻稳产、高产的严重障碍。水稻白叶枯病的防治研究工作,江苏省是1954年开始的。从发病因素、病菌来源等调查研究着手,到1956年明确了传病的菌源以稻种为主(和日本以杂草为主不同)。根据当时这一认识,镇江地区农科所和原南京农学院分别进行了种子消毒试验示范,都取得 Rice bacterial blight is a bacterial disease that occurs in most rice areas in Jiangsu Province. After the liberation, the six pandemics in 1954, 1956, 1957, 1962, 1965 and 1971. Before 1965, mainly in Suzhou, Zhenjiang and Yangzhou and other rice areas hardest hit. In recent years, with the expansion of dry land area, the ward has a tendency of spreading from south to north and expanding, and the degree of harm has been increasing year by year. After the onset of the general reduction of 2-3 percent, severe disease reduction of more than 5 percent, a stable yield to win the rice, a serious obstacle to high yield. Rice bacterial blight prevention and control work, Jiangsu Province was started in 1954. From the incidence of pathogens, germs and other sources of investigation and study proceed to 1956 to clear the source of the disease to rice-based (and weed-based in Japan mainly different). According to this understanding at that time, the Agricultural Science Institute of Zhenjiang and the former Nanjing Agricultural College conducted a demonstration of seed disinfection experiments, all made