开春后,气温回升快,雨水多,有利于灰霉病、白粉病、叶斑病等多种病害的发生,应及早预防,现将几种主要病害的药剂防治方法介绍如下:白粉病。该病在低温高湿条件下容易发生,草莓的茎、叶、花、果均可发生白粉病,病叶病斑上有白色粉状物,后期叶缘萎缩、枯焦;果实受害时, After the spring, the temperature rise quickly, more rain, in favor of gray mold, powdery mildew, leaf spot and other diseases, should be prevented as soon as possible, now several major diseases of the agent control methods are described below: Powdery mildew. The disease is prone to occur in the conditions of low temperature and humidity, the strawberry stems, leaves, flowers, fruit can occur powdery mildew, diseased leaves with white powder lesions, late leaf margin atrophy, brown focus; fruit damage,