菜苗猝倒病(包括立枯病、萎蔫病等),在我区主要有茄苗猝倒病、黄瓜猝倒病、元菜猝倒病等多种,属腐霉菌和丝核菌等所引起的真菌性病害,是育苗中的主要矛盾之一。菜苗猝倒病症状:猝倒病主要发生在幼苗茎基部,初发病时被害处呈水浸状软弱状态,以后逐渐萎缩而引起倒伏。由腐霉菌引起的倒伏发生很快,有时头一天还生 Vegetable seedling damping-off disease (including blight, wilting disease, etc.), in my area are mainly pickle damping-off disease, cucumber damping-off disease, damping-off disease and other elements of vegetables, is caused by Pythium and Rhizoctonia Fungal diseases, is one of the main contradictions in nursery. Vegetable seedling damping-off symptoms: damping-off disease occurs mainly in the base of the seedling stems, the initial incidence of the victim was flooded weak state, and then gradually shrink and cause lodging. Lodging caused by Pythium occurs very quickly, sometimes the first day of life