韭菜灰霉病又称白色斑点病,是我国冬春扣塑料膜韭菜的主要病害。就作者所见,在北京(1981)、大连(1983)、无锡(1984)等市均有发生,轻则叶片生斑,严重时全叶枯死,产量明显下降。病叶往往伴有霉味,使品质、口味都受到明显的影响。过去有的菜农把这一现象误认为蓟蚂为害或冻害。经我们鉴定,是一种国内尚未报导过的韭菜灰霉病。 Leek botrytis, also known as white spot disease, is China’s winter and spring deduction plastic film leek main disease. As far as the author can see, there are occurrences in cities such as Beijing (1981), Dalian (1983) and Wuxi (1984), ranging from thin leaf spot to severe leaf blight and serious decline in output. Sick leaves often accompanied by musty, so that the quality, taste are significantly affected. Some vegetable farmers in the past mistaken for this phenomenon as a thistle ant injuring or frostbite. After our identification, is a kind of chrysanthemum that has not been reported in China.