白叶枯病是南方水稻栽培的一个重要病害,主要发生在安徽、湖北、浙江和江苏等省,以安徽芜湖专区、湖北黄岗专区的各县和浙江省吴兴等地比较严重。主要为害早中熟籼稻,而粳稻和糯稻感染较轻,抗病程度在籼稻中因品种不同而有所差异;有的糯稻品种如安徽的“冬糯”抗病性相当顽强。发病稻田一般损失产量15—20%,高者可到30—50%,感病愈早 Bacterial blight is an important disease of rice cultivation in southern China. It mainly occurs in Anhui, Hubei, Zhejiang and Jiangsu provinces. The districts of Wuhu in Anhui, Huanggang in Hubei and Wuxing in Zhejiang are more serious. The main damage to early maturing indica rice, and japonica rice and glutinous rice infection is lighter, disease resistance in indica rice varieties vary; some glutinous rice varieties such as Anhui “winter waxy” disease resistance quite tenacious. The incidence of general loss of rice production 15-20%, the higher can be 30-50%, the earlier the flu