螨类是山东省茶树上的主要害虫，其中为害较重的有茶叶瘿螨和茶橙瘿螨。茶叶瘿螨在山东省主要以成螨在茶树叶片背面越冬，越冬死亡率为40．0—84．6％；开始活动时，各虫态螨多集中在老叶和成叶的叶面主脉和低洼处为害；被害叶片成禁铜色，无光泽，叶正面有大量白色灰尘状蜕皮 Mites are the main pests on the tea tree in Shandong Province, of which the heavier damage are tea scabies and tea scabies mites. Tea scabies in Shandong Province, mainly mites on the back of the tea leaves winter, the overwintering mortality rate was 40.0-84.6%; at the beginning of activities, the mites were more concentrated in the old leaves and into the leaves of the main leaf And low-lying damage; banned leaves banned copper color, dull, a large number of white leaf-shaped leaf surface molting