临沂市位于山东省东南部，是我国北方茶叶生产区。近几年来，黑刺粉虱在该市茶区普遍发生，受害茶树叶片正面乌黑，芽叶瘦稀，树势衰弱，严重降低了茶树的抗寒能力，致使大片茶园因此受冻而令人，给茶农造成巨大经济损失。1995年开始，笔者对此虫进行了定点观测，现将结果作一? Linyi City is located in southeastern Shandong Province, is China’s northern tea production area. In recent years, blackthorn whitefly commonly occurs in the tea area of ​​the city, the frontal black tea leaves damage, thin buds, shrubs weak, severely reduced the ability of cold hardiness of tea trees, resulting in a large tea so cold and makes it, To tea farmers caused huge economic losses. Beginning in 1995, the author of this pest conducted a fixed observation, the results for a?