本文应用楝科植物(印楝、川楝、苦楝)种籽油及其抽提物对柑桔木虱及其他害虫进行一系列的忌避拒食及触杀作用试验,证明印楝油有明显的忌避及拒食作用。印楝油对柑桔潜叶蛾有良好的防效。印楝、川楝及苦楝油对柑桔红蜘蛛也有较强的触杀作用。应用楝科植物杀虫剂可兼治几种害虫,对人畜安全,不污染环境,不会引起抗药性的产生,而且对害虫天敌也比较安全。 In this paper, a series of test on citrus psyllid and other pest insects and contact effects were carried out using the seed oil and its extract of Meliaceae plants (Neem, Melia azedarach and Melia azedarach), which proved that the oil of Neem was obviously avoided Antifeedant effect. Neem oil on the citrus leafminer has a good control effect. Neem, Chuanxiong and neem oil citrus red spider also have a strong contact role. Application Meliaceae plant pesticides can cure several pests, the safety of humans and animals, do not pollute the environment, will not lead to the emergence of resistance, but also relatively safe for pests and natural enemies.