三氯杀螨醇对茶树上的多种害螨(茶橙瘿螨、茶叶瘿螨、茶短须螨、咖啡小仄螨)均有良效,且残效期长。我国局部茶区已有应用。世界主要产茶国(印度、斯里兰卡、日本、肯尼亚等)也将此药作为茶园杀螨剂的首选品种。本文从残留降解和产品杂质角度对三氯杀螨醇是否适于茶园推广应用问题进行讨论。 1.茶园用药选译标准问题。 茶树的喷药部位即其经济收获部位(芽梢),且全年多次采摘(一般5-10天一次),喷药距采收的间隔期远较其他作物为短,采下鲜叶不经洗涤直接加工,成茶在饮茶时用沸水连续多次浸泡。此外,作为一种饮料,茶叶对色香味要求颇高。因此一种适用于茶园的农药除了对病虫高效、广谱外,还必须考虑对高等动物具较低的急性毒性和慢性毒性、残留期短或中等、安全间 Diclofenac has a good effect on many kinds of pest mites (tea gizzard mites, scabies mites, tea short mite mites, coffee mites and mites) on tea trees, and has long residual period. Some tea areas in China have been applied. The world’s major tea producing countries (India, Sri Lanka, Japan, Kenya, etc.) also use this medicine as the preferred species of acaricide for tea plantations. In this paper, we discuss the feasibility of dicofol in the tea plantation from the viewpoint of residue degradation and product impurities. 1. Tea selection of drug translation standards. Spraying parts of the tea tree, ie its economic harvesting site (bud shoots), and picking many times throughout the year (usually 5-10 days), the spray interval from harvesting is shorter than other crops, picking fresh leaves do not Directly processed by washing, tea into the tea with boiling water for many times soaking. In addition, as a beverage, tea color and flavor requirements are high. Therefore, a suitable pesticide for tea plantations in addition to efficient pests and diseases, broad spectrum, but also must be considered for lower animal acute toxicity and chronic toxicity, short duration or medium, safe