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保护地蔬菜苗期病害发生普遍。种类多,严重时常造成大片死苗,甚至翻种,延误农时。苗期病害,主要有猝倒病、立枯病、沤根、灰霉病、瓜类枯萎病、蕃茄晚疫病、蕃茄早疫病等。以上几种苗期病害、除沤根是因为苗床低温,高温和光照不足引起的生理性病害外,其余均为病菌侵染而引起的真菌性病害。因此,采取综合的防治措施,做好苗期病害的防治,培育无病壮苗,是蔬菜高产的基础。
Protected vegetable seedling diseases occur generally. Many kinds of serious and often cause large dead seedlings, or even seed, delay farming time. Seedling diseases, the main damping-off disease, damping-off, scab root, gray mold, melon blight, tomato late blight, tomato early blight. The above several seedling diseases, in addition to the root is due to the seedling bed temperature, high temperature and inadequate lighting caused by physiological diseases, the rest are fungal infections caused by fungal diseases. Therefore, to take comprehensive prevention and treatment measures, good seedling disease prevention and control, nurturing seedlings without disease, is the basis of high yield of vegetables.