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黄河故道地区葡萄果穗白腐病［Ｃｏｎｉｏｔｈｙｒｉｕｍｄｉｐｌｏｄｉｅｌｌａ（Ｓｐｅｇ．）Ｓａｃｃ．］一般始见于６月２０～２５日，从病害始发到７月５日为指数增长期，７月５日至８月１０日为发病盛期，８月１０日以后白腐病发展趋于缓慢。年份间发病盛期前期（７月５～２５日）白腐病的流行速率ｒ值有明显差异，轻发生年的ｒ值平均为０．０７７，重发生年ｒ值平均为０．１０３。其始发期与６月上旬的降水量和温而系数密切相关。葡萄白腐病病指曲线下面积主要受６月下旬至７月上旬的平均相对湿度、降水量、温度的影响，其相关系数分别为０．８２２、０．６３３、－０．６３１。
Coniothyrium diplodiella (Speg.) Sacc. ] Generally began in June 20 ~ 25, starting from the disease to July 5 for the exponential growth period, July 5 to August 10 for the peak growth period, August 10 after the development of white rot tends to slow. The prevalence rate r of white rot had a significant difference in the period of early onset (July 5 ~ 25) during the year. The average value of r in light years was 0.077, and the average annual value of r was 0.103. The onset period is closely related to the precipitation and temperature in early June. The area under the curve of grape white rot disease mainly affected by the average relative humidity, precipitation and temperature in late June to early July, the correlation coefficients were 0.822, 0.633, -0.631.