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近年来,棚室栽培的西葫芦灰霉病的发生和为害十分严重。据调查,可造成减产,甚至造成毁棚。该病为害花、果实、茎、叶等器官,病菌首先从凋萎的雌花开始侵入,侵染初期花瓣呈水浸状或水渍状,后变软腐烂并出现灰褐色霉层,造成花瓣腐烂、萎蔫、脱落。而后病菌逐渐向幼果发展,受害部位先变软腐烂,
In recent years, greenhouse cultivation of zucchini gray mold disease and the damage is very serious. According to the survey, it can cause a decrease in output and even cause destruction. The disease of flowers, fruits, stems, leaves and other organs, the first bacteria from wilting female invaded the beginning of infection petals were flooded or water-like, after the soft rot and gray-brown mildew, resulting in petal rot , Wilting, falling off. Then the bacteria gradually to the young fruit development, the affected parts become soft and rotten first,