桃褐斑穿孔病是桃树常见的病害,在各桃栽培区均有发生,常造成叶片穿孔,影响花芽形成,引起落花落果并降低品质,特别是近年来发生愈加严重,给果农造成严重损失。发病原因:引发桃褐斑穿孔病的病原为半知菌亚门真菌核果尾孢霉(图1),有性世代为子囊菌亚门樱桃球。其无分支的橄榄色分生孢子梗束生,直立或弯曲状生于子座上。细长的棕褐色分生孢子鞭状、倒棍棒状或圆柱形,直立或微弯,一 Peach blossom perforation disease is a common peach disease, occurs in all peach cultivation areas, often resulting in perforation of leaves, affecting the formation of flower buds, causing falling flowers and declining quality, especially in recent years more serious, causing serious losses to growers . The cause of the disease: the cause of peach-blossom perforation pathogenic Candida semiautuberculous Cercospora nodosus (Figure 1), the sexual generation of Ascomycota sub-cherry cherry. Its non-branched olive conidiophore fasciculus, erect or curved born in the seat. Slender tan conidia whip, stick-shaped or cylindrical, erect or slightly curved, one