角蜡蚧、茶叶瘿螨和黑刺粉虱已成为山东茶区三种主要害虫(螨)。其大发生的主要原因有三点:一是越冬方式特殊,春旱、秋又旱;二是茶园郁闭度大;三是管理、采茶等人为活动。根据三种害虫(螨)的发生规律,主要抓好越冬代和春茶前防治,其次抓好春茶后、三轮茶前及四轮茶前的防治。 Cape wax scale, tea scabies and black spot whiteflies have become the three major pests in Shandong tea area (mites). The main reasons for its occurrence are three points: First, the special way of winter, spring drought, autumn and dry; second, large closed canopy of tea; third is management, picking tea and other human activities. According to the occurrence of the three kinds of pests (mites), we should focus on the prevention and control of the overwintering generation and the spring tea, followed by the prevention and control of the spring tea, the three rounds of tea and the four rounds of tea.