自70年代以来,乐陵等小枣产区,发现枣树有红蜘蛛点片危害,80年代受害面积遍及整个小枣产区。1983年以来,我们对枣树上这种害螨进行了观察研究。经王慧芙先生鉴定,该害螨是截形叶螨(Tetranyohus truneatus Ehara),不但危害枣树,也是当地农田发生的主要 Since the 1970s, Le Ling and other jujube producing areas, jujube found red spots spider damage, 80 victim area throughout the jujube producing areas. Since 1983, we have observed the jujube’s pest mites. Identified by Mr. Wang Huifu, the pest mite is Tetranyohus truneatus Ehara, which not only endangers jujube trees, but also is the main occurrence of local farmland