蔬菜与瓜类苗期的主要病害有猝倒病、立枯病及沤根。诸如黄瓜、番茄、辣（甜）椒、茄子、甘蓝、芹菜、莴苣、西瓜、甜瓜等苗床及大田均可发病，据往年调查，管理不善者，一般发病苗株率２０％左右，个别严重的达７０％以上，造成重育苗，重栽种，损失颇大，故浅淡其发生与综防 Vegetable and melon seedling stage of the main diseases are damping-off disease, damping-off and scabies root. According to previous years investigation, poor management, the incidence of about 20% of the general incidence of seedlings, the individual serious (such as cucumber, tomato, spicy sweet pepper, eggplant, cabbage, celery, lettuce, watermelon, melon and other seedbed and the field can be serious Up to 70%, resulting in heavy nursery, replanting, loss is quite large, so its occurrence and prevention