葡萄扇叶病又称葡萄退化,世界葡萄产区均有分布,早在19世纪初欧洲就有描述,我国于1980年在新疆首先发现,目前是影响葡萄生产的主要病害之一。一般果园发病率在20%以上,严重者达80%以上,植株结果寿命显著缩短,果实甜度下降,产量损失可达90%以上,严重地影响了葡萄的品种风味和酿酒质量。 Grapevine leaf blossoms also known as grape degradation, the world’s grape producing areas are distributed, as early as the early 19th century in Europe have described the first in China in 1980 found that Xinjiang is currently one of the major diseases affecting the production of grapes. The incidence of common orchards in 20% or more serious cases of more than 80%, the results of plant life significantly shortened fruit sweetness decreased yield loss up to 90% or more, seriously affecting the grape variety of flavor and quality of brewing.