油菜菌核病发生、危害与气象因子的关系

The Relationship between the Occurrence and Damage of Rape Sclerotinia Rot and Climatic Factors

油菜菌核病是油菜上典型的气候型病害 ,其流行频率高 ,危害造成损失大。每年 2月的平均气温决定油菜菌核病的初见期 ,花期的降雨量影响油菜菌核病的流行 ,5月中旬的降雨量影响油菜菌核病的危害程度。

The occurrence of rape sclerotinia rot was mainly affected by climatic factors, and its popularization frequency was high and the loss was huge. The average temperature in Feb. would determine the beginning time of rape sclerotinia rot and the rainfall in the flowering period would affect its popularization, and the rainfall in the second ten-day of May would affect its damage degree.