葡萄白腐病在北京地区6月下旬田间初见病穗或病粒,以后发生日见增多,从7月下旬至采摘期病穗呈直线上升态势;篱架栽培葡萄,果穗越近地面,发病越早,以后向架面上部发展;发生严重葡萄园产量减少60%～70%。现介绍葡萄白腐病在北京地区的发生规律及综合防治技术。 Grape white-rot disease first appeared in the field in late June in Beijing in the field of disease or sick grain, the occurrence of daily increases, from late July to picking panicle was a straight line up trend; fence cultivation of grapes, ears closer to the ground, the incidence The sooner the later, to the top of the frame development; serious vineyard production reduced by 60% to 70%. Now introduced grapes white rot in the occurrence of Beijing law and integrated control technology.