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海枣褐斑病,在我国主要分布于福建、广东、海南等热带亚热带地区,尤其以漳州、深圳等地发病严重。海枣作为一种较具观赏价值的园林植物,发生褐斑病,轻者影响植物生长,重者造成叶片干枯,严重影响园林景观。症状识别:叶片被害初期,出现圆形、椭圆形小斑,后扩展为不规则形大斑,呈黑褐色,严重时病斑相互连接成大斑块,叶片干枯,病斑上有小黑点。
Jujube leaf spot, mainly distributed in China in Fujian, Guangdong, Hainan and other tropical subtropical regions, especially in Zhangzhou, Shenzhen and other serious onset. Date palm as a more ornamental value of garden plants, brown spot occurs, the light affect the plant growth, severe cases caused by the leaves dry, seriously affecting the landscape. Symptom identification: the initial stage of leaf damage, a round, oval small spots, after the expansion of large irregular shaped spots, dark brown, severe lesions connected to each other into large patches, leaf dry, spots on the black spots .