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1 主要症状 春季新梢叶片呈现水渍状黄色斑点,叶畸形;上年秋梢或顶端的秋梢老叶颜色变淡,呈古铜色,叶片反卷、变脆,严重缺硼时叶片变黄,叶中脉和侧脉肿大、爆裂;花器发育不良,畸形花、露柱花多,落花严重,着果率低;幼果畸形,果皮有瘤状突起,有的果实有流胶现象,有的果柄明显破裂,果皮粗糙、增厚呈木栓化,出现僵果;成熟期果心及中皮层积有褐色胶状物,着色差,可食率低,汁少,糖度低,不耐贮;植株腋芽丛生,重者树冠顶部生长受抑制,出现秃枝。
1 main symptoms of spring shoots showed water stains leaves yellow spots, leaf deformities; last year or the top of the autumn tip of the old leaves pale color, bronze, the leaf rewinding, brittle, the serious lack of boron leaf yellow, leaves Midrib and lateral veins swollen, burst; flower hypoplasia, deformity flowers, spent more flowers, dew flower serious fruit rate is low; young fruit deformity, peel tumor-like processes, and some fruit gel phenomenon, and some fruit The stalk was obviously ruptured, the pericarp was rough, thickened and corky, and the stiff fruit appeared; brown jelly was formed in the fruit core and middle cortex during maturity, the color was poor, the edible rate was low, the juice was low, the sugar content was low, Plant axillary bud clusters, severe crown growth inhibition, emergence of bald branches.