番茄灰霉病是温室大棚生产中的主要病害之一，该病从苗期直到结果期都有危害，所以给蔬菜生产造成很大损失。一、症状：苗期多从子叶和下部真叶开始发病。子叶发病后，叶色开始退绿发黄，逐渐变褐坏死，表面生有霉层。真叶病斑呈“Ｖ”字形，有轮纹，后期产生灰霉。幼苗病... Botrytis cinerea is one of the main diseases in greenhouse production. The disease is harmful from the seedling stage to the fruiting stage, which causes great losses to the vegetable production. First, the symptoms: more seedlings from the cotyledons and lower true leaves onset. After the onset of cotyledons, leaf color began to turn green yellow, gradually browning and necrosis, the surface of the mold layer. Egg leaf spot was “V” shape, a round pattern, the latter have gray mold. Seedling disease ...