近年来，蔬菜大棚生产逐年扩大，品种多，重茬比例大。由于菜农防治水平低，病害发生危害程度不同，轻则减产10％～20％，重则减产50％～70％，严重影响产量和品质，极大挫伤了菜农的生产极积性。对此，现将江淮地区蔬菜大棚主要病害的发生与防治简述如下：一、苗床选择苗床应 In recent years, the production of greenhouses has been expanding year by year with a large variety and a large proportion of continuous cropping. Due to the low level of prevention and control of vegetable farmers, the degree of damage of the disease is different, ranging from 10% to 20% and from 50% to 70% in weight, seriously affecting the yield and quality and greatly damaging the vegetable plot production. In this regard, now Jianghuai vegetable greenhouse the main disease occurrence and prevention are summarized as follows: First, seedbed selection seedbed should be