葡萄白腐病是葡萄生产上的重要病害之一。在辽宁、河北、河南、山东、山西、安徽、北京等地区均有不同程度的发生,有的葡萄园果实损失率达20—60％。一、症状:白腐病能为害果实、果梗、枝蔓和叶片。果实一般在7月上中旬开始发病,但各地区有所差异,北京地区在6月中旬就开始发病,多发生在葡萄植株下部靠近地面的果穗先端。发病开始,小果梗或果穗主轴上生有不规则的褐色水渍状病斑,渐渐向下部或果粒 Grape white rot is one of the most important diseases in grape production. In Liaoning, Hebei, Henan, Shandong, Shanxi, Anhui, Beijing and other regions have varying degrees of occurrence, and some vineyard fruit loss rate of 20-60%. First, the symptoms: white rot can damage fruit, fruit stems, branches and leaves. The fruit usually begins in mid-July, but varies from region to region. In Beijing, the disease started to occur in mid-June and occurred mostly in the apex of the ear near the ground in the lower part of the grape plant. Beginning of the onset, small fruit stems or fruit spikes on the birth of an irregular brown water-like lesions, gradually to the bottom or fruit