枣锈病发生在叶片,俗称“串叶”。发病初期叶背面散生淡绿色小点,以后逐渐形成暗黄褐色突起,病斑多发生在叶脉两侧及易凝水滴的地方;如叶片尖端、基部、叶缘、侧脉等处,有时连成条状,形状不规则,后期破裂,散出黄粉。在叶片正面相对的位置,发生绿色小点;边缘不规则,使叶片呈花叶 Jujube rust occurs in the leaves, commonly known as “string of leaves.” Occurred early in the back of the leaf scattered light green dots, and later gradually formed dark brown protrusions, lesions occur in both sides of the veins and prone to condensate water droplets; such as blade tip, base, leaf margin, lateral veins and other places, and sometimes even Into a strip, irregular shape, rupture, scattered yellow powder. In the front of the leaf opposite the position, the occurrence of small green dots; irregular edges, so that leaves were mosaic