番茄灰霉病是温棚冬季栽培番茄最严重的病害,在我国北方、南方均严重发生。它导致的产量损失达20%以上,同时还危害辣椒、茄子、莴苣、西葫芦、芹菜等多种蔬菜。番茄灰霉病是一种真菌病,病原为灰葡萄孢菌。它可侵染番茄的叶、果和茎,其中果实受害最重。果实受害一般由花瓣、柱头浸染,逐步造成花腐,后向果面和果柄扩展,多从果脐、果项萼片和果柄基部显现症状。幼果软腐,青果病部果皮呈灰白色水渍状软腐,很快发展成不规则大斑,果实失水后僵化。叶片受害多从叶尖开始发病,病斑呈“V”字形向内扩展,起初呈水渍状,逐渐变 Botrytis cinerea is the most serious disease of winter greenhouse cultivation greenhouse in greenhouse, which is serious in northern China and southern China. It leads to loss of production of more than 20%, but also endanger the pepper, eggplant, lettuce, zucchini, celery and other vegetables. Botrytis cinerea is a fungal disease, the pathogen is Botrytis cinerea. It can infect tomato leaves, fruit and stems, of which the fruit hardest hit. Fruit damage is usually caused by the petals and stigma, which gradually lead to flower decay. The fruit surface and fruit stalks expand gradually, and many symptoms appear from the umbilicus, the fruit sepals and the base of the stalk. Soft-rotated young fruit, green fruit disease peel was soft white water stains soft rot, quickly developed into irregular big spot, the fruit after the rigid water loss. More leaf damage from the tip of the disease began to appear, the lesion was “V ” shape inward expansion, initially showed water-like, gradually changing