茶蚜(Toxoptera aurantii Boyer)又名茶二叉蚜、可可蚜,俗称腻虫、蜜虫。属同翅目,蚜科。全国茶区几乎均有分布。它聚集于茶树嫩芽叶上刺吸汁液,致使芽梢萎缩,停止生长,甚至枯死;其排泄物“蜜露”污染嫩梢,而且诱发烟煤病,严重影响茶叶产量和品质。茶园中,多年来使用乐果防治,致使茶蚜产生抗药性,防效差。为寻找高效、低毒、低残留的农药新品种,我们选用年丰做了药效试验,结果报导如下: Tea aphid (Toxoptera aurantii Boyer) aka tea aphid, aphids, commonly known as greyworms, honey insects. Homoptera is aphid subjects. Almost all the tea area are distributed. It gathered in the shoots of tea tree thorns sucking juice, causing shoots shrink, stop growing, or even dead; its excrement “honeydew ” polluting young shoots, but also induced bituminous coal disease, seriously affecting the yield and quality of tea. Tea garden, the use of dimethoate prevention and treatment over the years, resulting in tea aphid resistance, poor control efficiency. In order to find a new pesticide with high efficiency, low toxicity and low residue, we chose the annual Feng to do the efficacy test. The results are reported as follows: