疫病引起的烂果。疫病从苗期到结果期一生都有发生,是造成落花、落叶、落果的主要病害,烂果多数先从蒂部染病,呈水渍状灰绿斑后迅速变褐软腐。湿度大时,表面长出稀疏的白色霉层,果实干缩不脱落;其它部位如茎杈枝叶上,常有水渍状褐斑。药剂可选用64%杀毒矾500倍液、72%甲霜灵锰锌600倍液或72%杜邦克露800 Diseases caused by the rotten fruit. Blight from the seedling to the fruiting period of life have occurred, is the main cause of falling, deciduous, deciduous fruit rotten fruit majority of the first pedicle disease was water stains gray-green spot quickly brown soft rot. Humidity, the surface grow sparse white mildew layer, the fruit shrinkage does not fall off; other parts such as stems and branches leaves, often water-like brown spots. Pharmacy optional 64% anti-virus alum 500 times, 72% metalaxyl 600 times manganese or 72% DuPont grams exposed 800