草莓是我国早春上市的主要鲜果。草莓白粉病是棚栽草莓的主要病害,几乎年年重发生。该病主要为害叶片,也可为害叶柄、花、花序梗及果实。被害叶片在叶背产生白包粉状物,叶缘萎缩直至全叶枯蕉;叶柄、花、花序梗被害后,停止生长而干枯;幼果被害后成僵果;成果被害后,上覆白色粉状物,与鲜红的健果形成鲜明对比,失去商品价值;严重时使整个植株死亡。草莓患症后一般减产20%以上,重的超过50%甚至绝收。因此,草莓白粉病是制约草莓产量和品质的主要障碍。化防措施如下:1.选择安全高效的农药品种。目前防治草莓白粉病以三唑类杀菌剂效果最好,主要有世高、好力克、腈菌唑、力克菌和三唑酮等.从安全高效来看,以世高、好力克为最好,腈菌唑次之, Strawberry is the main fruit of our country listed in early spring. Strawberry powdery mildew is the main disease shed shed strawberry, reborn almost every year. The disease is mainly affected leaves, pests can also be harmful, flowers, peduncles and fruits. Vicia faba leaves produce white powder on the back of the leaves, leaf margin shrink until the whole leaf dry banana; petiole, flowers, peduncles after the injury, stop growing and dry; young fruit becomes a stiff fruit after being killed; Powder, in sharp contrast with the bright red fruit, lose the value of the commodity; in serious cases, the entire plant died. Strawberry disease generally cut more than 20%, more than 50% or even overweight. Therefore, strawberry powdery mildew is a major obstacle to the yield and quality of strawberry. Anti-chemical measures are as follows: 1. Choose safe and efficient pesticide varieties. At present, the control of strawberry powdery mildew with triazole fungicides best, mainly high, good Lectra, myclobutanil, Lectra and triadimefon. In terms of safety and efficiency, the world high, good Lectra is the best , Myclobutanil followed,