葡萄白腐病是葡萄生产上最严重的病害之一。经几年观察调查知,公主岭市环岭乡该病发病率占葡萄病害的50%,其中死亡树10%。 1.病症特点果穗发病先见小穗梗上,以后蔓延到果粒和穗轴上,穗轴烂后整个果穗脱落,被害果粒发软,变灰色白色,有特殊的腥味,后期病部出现小黑色点。蔓上多在 Grape white rot is one of the most serious diseases in grape production. After several years of investigation, the incidence of the disease in Huanling Township, Gongzhuling City, accounted for 50% of the disease, of which 10% were dead trees. 1. Symptom characteristics Ear disease Spikelet preeclampsia, and later spread to the fruit and cob, spinach rotten whole ear off, the victim fruit soft, gray gray, with a special smell, the late disease Small black dots appear. More on the vine