葡萄白粉病自1984年在哈密市区东河坝发现后,从城区向郊区外各乡和农场迅速蔓延,已成为哈密葡萄生产的主要病害。受害后的葡萄叶片畸形,树势衰弱,果实干缩萎蔫或开裂腐烂,丧失其商品价值,轻者影响葡萄的品质和产量,重者颗粒无收。目前,哈密垦区1.4万亩葡萄受着葡萄白粉病的严重威胁。为此,我们组织葡萄基地务农场,采用科学的防治措施,有效地控制了该病的发生和蔓延,防治效果达到90％以上,降低了病害损失,经济效益和社会效益显著。 Grape powdery mildew has been discovered in Dongheba, Hami City since 1984, and has rapidly spread from urban areas to rural areas and farms outside suburbs. It has become a major disease in the production of Hami grapes. Defective grape leaf deformity, tree weakness, fruit shrinkage wilting or cracking decay, loss of the value of their products, the light affect the quality and yield of grapes, heavy particles without income. At present, 14,000 mu of grape in Hala reclamation area is seriously threatened by grape powdery mildew. To this end, we organized grapes-based farms and adopted scientific prevention and control measures to effectively control the occurrence and spread of the disease. The prevention and control effects have reached over 90%, reducing the losses of diseases and bringing remarkable economic and social benefits.