葡萄扇叶病症状及防治答江苏省邗江县读者吉维勇葡萄受扇叶病毒侵染后，初期地上部无明显症状，仅生长衰弱（新梢生长量小）、落花重，后期表现果粒松散且大小不齐（有不成熟的硬粒和小青粒），有的叶片出现畸形，叶片顶端锯齿变尖而不规则，裂刻比正常叶片深，叶形很像扇... Grape leaf disease symptoms and prevention and control of jijiang Yongjiang County, Jiangsu Province, readers Jiwei Yong Grapevine leaf mosaic virus infection, the initial no obvious symptoms of the upper part of the ground, only weak growth (small shoot growth), falling weight, the late performance of fruit Loose and not the same size (immature hard particles and small green particles), some leaf deformities, tip serrated sharp and irregular, split deeper than normal leaves, leaf-shaped like a fan ...