白粉病是吉林省公主岭市保护地草莓上发生的主要病害之一,该病在草莓的整个生长季节均可发生,严重影响草莓的产量和质量。近几年,随着草莓种植面积的不断扩大,白粉病在各棚室都有不同程度地发生,尤其在重茬地病害发生更为严重。如果不尽早防治,一旦发生,白粉病一周内就可蔓延至全棚草莓。目前生产上对草莓白粉病的防治主要依赖化学药品,多年连续施用同一化学药剂不仅会导致病菌对药剂产生抗性,防治效果大大下降,而且还会对草莓和环 Powdery mildew is one of the main diseases occurring in strawberries protected in Gongzhuling City, Jilin Province. The disease may occur throughout the growing season of strawberries and seriously affect the yield and quality of strawberries. In recent years, with the continuous expansion of strawberry planting area, powdery mildew occurs in different degrees in various greenhouse, especially in the continuous cropping disease is more serious. If you do not control as soon as possible, once occurred, powdery mildew can spread to the whole studio strawberry within a week. The current production of strawberry powdery mildew prevention and control mainly rely on chemicals, continuous application of the same chemical for many years will not only lead to bacteria on the drug resistance, prevention and control greatly reduced, but also strawberry and ring