草莓白粉病主要为害叶片、叶柄、花蕾、果实、果柄等。发病初期在叶背面发生白色丝状菌丝,然后形成白粉状,为害严重时叶缘向上卷起、焦枯,花瓣受害变为红色,果实受害后果面覆盖白色粉状物。植株栽种过密,施氮肥过多,病害发生较严重。防治方法:①选用抗病品种,特别是连作大棚和在白粉病重发区。②培育壮苗。 Strawberry powdery mildew is the main damage leaves, petiole, buds, fruits, fruit stalks and so on. Early onset of white filamentous mycelium in the back of the leaves, and then form a white powder, when the damage is serious, the edge of the leaf rolled up, scorched, the petal victim turns red, the consequences of fruit damage covered with white powder. Plants planted too dense, too much nitrogen fertilizer, the disease occurred more serious. Prevention and treatment methods: ① selection of disease-resistant varieties, especially even for the greenhouse and powdery mildew reclaimed areas. ② nurturing strong seedlings.