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苹果轮纹病又称粗皮病、轮纹褐腐病。危害苹果以及梨、桃、李、杏和枣等。主要危害枝干、果实和叶片。枝干被害后,初期以皮孔为中心产生红褐色近圆形或不规则形病斑,随着枝干生长,病斑中心逐渐隆起呈瘤状,颜色变深,质地坚硬。次年病斑继续扩大,失水干缩,病健交界处产生裂缝,逐渐翘起,脱落。严重时,树皮粗糙,甚至死枝、死树。果实受害后,以皮孔为中心产
Apple rot disease, also known as skin disease, rotten grain brown rot. Harm the apples and pear, peach, plum, apricot and jujube. Mainly harm the branches, fruits and leaves. After the branches were killed, the initial skin-hole as the center to produce red-brown near-circular or irregular shaped lesions, with the growth of branches, the lesion was gradually uplift was tumor-like, darker, hard texture. The following year lesions continue to expand, dehydration shrinkage, disease-health junction cracks, gradually tilt, fall off. Seriously, the bark rough, even dead branches, dead trees. After the fruit is harmed, the skin hole as the center production