识别与诊断葡萄霉霉病。叶片染病,初呈半透明、边缘不清晰的淡黄绿色油浸状斑点,后变成黄色至褐色多角形斑。新梢、卷、须染病,初呈半透明水浸状斑点,后扩展成黄褐色病斑。染病小花及花梗初期出现油渍状小斑点,渐变为黄褐色,腐烂脱落。幼果病部变硬下陷,皱缩。湿度 Identify and diagnose grape mold disease. Leaves infected, initially translucent, the edge is not clear yellowish green oil-like spots, later became yellow to brown polygonal spot. Shoots, volumes, to be infected, initially showed a translucent flooding-like spots, after the expansion into the brown spots. Small flowers and pedicel early emergence of small spots of oil-like stains, gradient into brown, decay. Young fruit disease hardens subsidence, shrinkage. humidity