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番茄灰霉病的病原菌属低温高湿致病菌，主要在春季温室和大棚中浸染发病。病害以花器侵染，果实发病为主，致果实软腐、僵化或脱落。该病发生早、传播快，防治难，一般平均发病率15％，产量损失25％以上。目前，由于病菌抗性的不断增强，单靠药剂防治，其防治效果亦不过7O％－8
Botrytis cinerea is a pathogen of low temperature and humidity, mainly in the spring greenhouse and greenhouse infection in the incidence. Disease flowers to infection, the main fruit disease, resulting in soft rot, fossilized or fall off. The disease occurred early, spread fast, prevention and treatment difficult, the average average incidence of 15%, yield loss of more than 25%. At present, due to the continuous increase of germ resistance, drug control alone, but also the prevention and treatment effect of 7O% -8