在我国北方地区,由于秋冬季节气温下降,大棚的通风口逐渐封闭。大棚内温度无法适合于西红柿的生长。由于通风口的关闭,加之西红柿植株茂密,特别是在浇水之后大棚内的湿度明显加大。湿度的增加,经常会导致西红柿叶霉病的发生。文章主要针对大棚西红柿叶霉病的产生、症状和防治方法进行介绍。 In the northern part of our country, due to the fall in temperature in autumn and winter, the vents in the greenhouse gradually closed. Greenhouse temperature can not be suitable for the growth of tomatoes. Due to the closure of vents, coupled with dense plants of tomatoes, especially in the water after the greenhouse humidity significantly increased. Humidity increases, often lead to tomato leaf mold disease. The article is mainly aimed at the production of tomato leaf mold in greenhouse, symptoms and prevention methods.