冬季保护地栽培的辣椒、黄瓜、茄子、甘蓝、番茄等蔬菜,在苗期最易发生的两种病害是立枯病和猝倒病,如不加以注意,常会引起烂种或幼苗期的成片死亡,甚至全部毁苗,应提早采取措施加以防治。症状识别:1.立枯病。由病原真菌的丝核菌引起,茄子、番茄、黄瓜、莴苣、辣椒等幼苗在出土时最易受侵染,开始在茎基部产生椭圆形褐色凹陷病斑,初期白天叶片萎蔫,晚间恢复,病斑扩大 In the winter, pepper, cucumber, eggplant, cabbage, tomato and other vegetables cultivated in protected areas are the most susceptible to blight and damping-off disease at seedling stage. Without careful attention, Death tablets, and even destroyed all seedlings, should take early measures to control. Symptom identification: 1. Blight. Caused by the pathogenic fungus Rhizoctonia, eggplant, tomato, cucumber, lettuce, peppers and other seedlings in the unearthed most vulnerable to infection, beginning at the base of the stem to produce oval brown depression lesion, the early days of leaf wilting, night recovery, disease Spot enlargement