[目的]研究几种植物源农药防治2种茶树害虫的药效.[方法]采用随机区组试验设计.在茶尺蠖低龄幼虫和茶小绿叶蝉高峰期喷施不同浓度的植物源农药,药后1、3、7、10 d调查虫口减退率和防治效果.[结果]7.5％鱼藤酮乳油800倍液防治茶尺蠖速效性最好;0.5％藜芦碱可溶性液剂800倍液防治茶小绿叶蝉效果最好.0.5％藜芦碱可溶性液剂、0.2％苦皮藤乳油、0.3％苦参碱水剂和7.5％鱼藤酮乳油均可选择用于防治茶尺蠖;0.5％藜芦碱可溶性液剂、0.2％苦皮藤乳油、0.3％印楝素乳油、0.3％苦参碱水剂和7.5％鱼藤酮乳油均可选择用于防治茶小绿叶蝉,其中0.3％印楝素乳油600倍液防治茶小绿叶蝉的持效性最好,药后7d防效达100％.[结论]研究结果为植物源农药在有机茶园害虫防治中的应用奠定了基础.%[Objective] The paper was to study the efficacy of several botanical insecticides against two pests in tea plantation. [ Method] U-sing randomized block design, different concentrations of botanical insecticides were sprayed during the young larvae periods of Ectropis oblique hmpvlina Wehrli and peak periods of Empoasca pirisuga, the reduction rate of insect and control effects were investigated after spraying for 1, 3, 7 and 10 d. [ Result] 7. 5% rotenone EC 800 times had the best control effect against E. Oblique hmpulina, and 0.5% veratridine soluble liquid 800 times had the best control effect against E. Pirisuga. 0. 5% veratridine soluble liquid, 0. 2% Celastrus angulatus Maxim. EC, 0. 3% matrine water agent and 7.5% rotenone EC could be selected for the control of E. Oblique hmpulina; 0.5% veratridine soluble liquid, 0. 2% C. Angulatus Maxim. EC, 0. 3% azadirachtin EC, 0. 3% matrine water agent and 7.5% rotenone EC could be selected for the control of E. Pirisuga, of which 0. 3% azadirachtin EC 600 times was the best on sustainable control effect against E. Pirisuga with control efficacy of 100% after 7 d. [ Conclusion] The results provided basis for application of botanical insecticides in pests control in tea plantation.
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