保护地蔬菜由于连年种植,不便腾茬和倒茬,一旦根腐病发生,常造成蔬菜绝收,带来很大损失,特别是保护地栽培的黄瓜、辣椒、茄子、番茄、菜豆等蔬菜最易发生根腐病。根腐病主要侵染蔬菜的根和近根颈部,病株初期症状不明显,往往一块田中只有几株,似因“干旱”所致,中午叶片萎蔫,早 Protected vegetables due to years of planting, inconsecutive stubble and stubble, once the root rot occurs, often resulting in vegetable harvest, resulting in great losses, especially protected cultivated cucumber, pepper, eggplant, tomatoes, beans and other vegetables most likely to occur Root rot. Root rot mainly infects the roots and proximal roots of vegetables, the initial symptoms of diseased plants is not obvious, often only a few pieces of field, it seems due to “drought” due to noon leaves wilting, early