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麦类白粉病是我区常年发生的病害之一.近年来随着生产的发展,施肥水平的提高,加上晚茬麦多,抗病品种少,病情有发展的趋势,对三麦高产稳产有一定影响.为了掌握发病规律,探讨适用于本地区的防治方法,我所进行了有关试验,现将初步结果总结如下.一、发病情况1975年是白粉病发生较普遍的一年,大、小、元麦均受到不同程度的为害.据在我所
Wheat powdery mildew is one of the perennial diseases in our district.In recent years, with the development of production, the improvement of fertilization level, coupled with the late crop of wheat, less disease-resistant varieties, the disease has a tendency to develop high yield and stability of the three wheat There is a certain influence.In order to grasp the law of onset, to explore for the prevention and treatment methods applicable to the region, I carried out the relevant tests, the preliminary results are summarized as follows: First, the incidence of mildew in 1975 is a more common year, Small, Yuan Mai are subject to varying degrees of damage