茭白纹枯病近年来在我省水生蔬菜基地发生较普遍，为害愈来愈严重，病田率达１００％，轻病田一般病株率在３０％～６０％，重病田全部枯黄，造成大面积减产和品质低劣，给菜农造成严重的经济损失。现将该病症状识别和防治方法介绍如下。 一、症状识别 茭白纹枯病从分蘖期至结 茭 white sheath blight in aquatic vegetable base in our province in recent years more common occurrence of more serious damage to the disease rate of 100%, mild disease rate of 30% to 60% of the general plant disease seriously yellow fields, resulting in large Area cuts and poor quality, to vegetable farmers caused serious economic losses. Now the disease symptoms identification and prevention methods are described below. First, the symptoms identified 茭 white sheath blight from the tillering stage to the end