芹菜灰霉病是近年棚（室）新发生的一种病害。一般为局部发病 ,发病初期多从植株有结露的心叶 ,或下部有伤口处的叶片、叶柄、或枯黄衰弱外叶侵入 ,初为水浸状 ,后病部软化、腐烂或萎蔫 ,同时可从病部出现灰色霉层 ,在长期高温下会造成整株腐烂。此病一般多发生在１２月至第二? Botrytis cinerea is a new disease occurred in shed (room) in recent years. In general, there is local onset. In the early stages of the disease, there are more leaflets from the plants, or lower leaves with leaves at the wound, petioles, or yellowish and weak outer leaves. In the beginning, it is flooded and the diseased part softens, decay or wilting. Gray mold layer may appear from the disease, the whole plant will be rotten under long-term high temperature. The disease usually occurs in December to the second?