韭菜灰霉病又称白色斑点病,是冬春塑料小棚韭菜的主要病害。近两年,此病在辽宁省锦州、大连,河北省唐山及北京、天津近郊发生严重,给小棚韭菜生产造成很大损失。由于此病流行,丰润县北关很多菜农被迫改茬毁种。为了解决这一问题,我们从1984年末到1985年春进行了广泛调查及小面 Leek botrytis, also known as white spot disease, is the winter and spring plastic shed leek disease. The past two years, the disease in Jinzhou, Liaoning Province, Dalian, Tangshan and Hebei Province in Hebei Province, Tianjin, the outskirts of serious damage to shed shed lettuce caused great losses. Due to the epidemic, many vegetable farmers in Beihuan County, Fengrun County, were forced to deforestation. In order to solve this problem, we conducted extensive investigations and facets from late 1984 to the spring of 1985