月季白粉病是花卉栽培中主要病害之一,严重危害其正常生长发育、开花和观赏价值。月季白粉病是一种真菌病害,以菌丝体在植株的芽、枝和叶片上越冬度寒,来春气温回升后,在适合的条件下再产生分生孢子扩大蔓延。病株侵染健株多 Rose powdery mildew is one of the major diseases in flower cultivation, seriously jeopardizing its normal growth and development, flowering and ornamental value. Rose powdery mildew is a fungal disease, the mycelium in the buds, branches and leaves overwintering winter, come spring temperature rise, in the appropriate conditions to produce conidia spread. Disease strains infected more than healthy plants