葡萄霜霉病是新疆北疆地区最主要的多发性真菌病害,为害期长,流行性强,在北疆地区每年都有不同程度的发生,近年来随着葡萄种植面积的快速增加,葡萄种植面积已达15万hm2,是中国最大的葡萄种植区,该病的发生有日趋严重之势,且多在夏秋季发生,是葡萄生长中后期病害,冷凉潮湿天气发病重。现通过在北疆地区研究葡萄霜霉病发病规律,摸清葡萄霜霉病发病规律及生物学特性,明确病害流行的主导因素,为葡萄霜 Grape downy mildew is the most important multiple fungal disease in northern Xinjiang. It has a long period of harm and strong epidemic. It occurs to varying degrees every year in northern Xinjiang. In recent years, with the rapid increase of grape acreage, The area has reached 150,000 hm2, and it is the largest grape growing area in China. The occurrence of this disease is becoming more and more serious. It occurs mostly in the summer and autumn and is a disease in the middle and late stages of grape growth. Cold and damp weather is severe. By studying the pathogenesis of grape downy mildew in northern Xinjiang, we can understand the pathogenesis and biological characteristics of grape downy mildew and clarify the dominant factors of the epidemic.