壁虱为害枣叶造成枣吊缩短、叶面积变小.叶解剖结构中细胞排列疏松,上表皮层及近轴面栅栏组织变薄,海绵组织增厚.因壁虱刺吸在叶背面留有大量刺吸孔,刺吸孔周围细胞收缩变褐死亡,造成叶子反卷、易折裂.受害叶气孔关闭,水势负值,蒸腾强度增大,主要是伤口蒸腾,最后导致不可逆的水分亏缺.同时,受害叶气孔阻力增大,叶绿素含量下降、光合速率低. The jujube leaves caused by the ticks were shortened and the leaf area was reduced.The cells in the leaf anatomical structure were loosely arranged, the upper epidermis and paraxial palisade tissue became thinner, and the sponge tissue was thickened. A large number of punctured holes punctured holes around the cell shrinkage and brown death, resulting in the leaves of anti-roll, easy to fracture.The affected leaves stomatal closure, negative water potential, transpiration intensity increases, mainly the wound transpiration, leading to irreversible water deficit At the same time, the stomatal resistance increased, chlorophyll content decreased and photosynthetic rate was low.