茶树病虫害是茶叶生产的一个重要限制因素,三十多年来,我国对茶树病虫害的种群组成和变化,主要病虫和天敌优势种的生物学特性和发生规律,防治策略和理论以及具体防治方法的研究有了很大的进展。本文就几个方面对茶树病虫的发生和防治的进展进行讨论,并对本世纪末期发展的可能性进行预测。一、茶园病虫种群结构我国茶区幅员辽阔,病虫种类繁多,已有记载的茶树害虫400多种,病害100多种。茶树是一种多年生木本植物,茶丛茂密郁闭,茶园微气候和营养条件变幅较小,构成了相对稳定的茶园病虫区系。原来的优势种一般仍然保持优势地位,主要害虫种类有:小绿叶蝉、螨类(茶橙瘿螨、茶叶瘿蟥、跗线螨、茶短须螨)、尺蠖类(茶尺蠖、油桐尺蠖、云尺蠖、木(木尞)尺蠖)、刺蛾类(茶刺蛾、扁刺蛾)、茶毛虫、茶小卷叶蛾、蚧类(蛇眼蚧、椰圆蚧、角蜡蚧、长白蚧)、 Tea tree pests and diseases are an important limiting factor in tea production. For more than thirty years, the population composition and changes of tea plant diseases and insect pests in our country, the biological characteristics and occurrence rules, the control strategies and theories and the specific control methods of dominant pests, The research has made great progress. This article discusses several aspects of the occurrence and control of pests and diseases in tea and discusses the possibility of development in the end of this century. First, the pest population of tea plantation China’s tea area is vast, a wide range of pests and diseases, there have been recorded more than 400 kinds of tea tree pests, more than 100 kinds of diseases. Tea tree is a perennial woody plant, tea Cong Cong close, tea garden micro-climate and nutrient conditions smaller amplitude, constitute a relatively stable tea plant diseases and insect pests. The dominant species are still generally dominant, the main pest species are: green leafhopper, mites (tea scabies mites, tea moths, mites, mites), scallop (Crab moths), Siberian moths (Plutella xylostella), tea caterpillars, tea leaf roller moths, scale species (Echinochloa crusgalli, Coccothra pallidae, ,