作为苹果果面障害的果锈,是果皮一部分木栓化,成为褐色。锈重时显著地使商品价值降低。果锈发生的程度,因品种而异。据观察,在树冠外侧的果实,比在树心的果锈多。幼果期(开花后约一个月内)受水湿或农药的影响时,发生也多。笔者用电子显微镜观察了无袋栽培时果锈发生较重的金帅( As an apple fruit face disorder fruit rust, is part of the peel cork, become brown. Rust weight significantly reduces the value of the product. The extent of fruit rust occurs, depending on the breed. It is observed that the fruit on the outside of the canopy is more than the fruit rust on the tree heart. The young fruit period (about one month after flowering) is also affected by the influence of water or pesticides. The author observed by electron microscopy baguette-free fruit rust occurred more serious Jin Shuai (