桃缩叶病是桃树栽培地区普遍发生的一种病害。病原菌以子束孢子或芽孢子等,在桃树的芽鳞片和枝干的树皮上越夏、越冬。第二年春季桃树萌芽时,芽孢子萌发,由叶背(叶片展开前)或叶面(叶片展开后),穿过叶片表皮侵入叶 Peach leaf disease is a common disease in peach cultivation area. Pathogenic bacteria such as beam bundle spores or spores, etc., in peach bud scales and branches of the bark on the summer, winter. The second year when the peach sprout in spring, the spore germination, by the leaf back (before leaf expansion) or foliage (leaf expansion), through the leaf epidermis invasion leaf