几种植物源农药防治茶树主要害虫的药效

Efficacy of Several Botanical Insecticides Against Main Pests in Tea Platation

研究了7.5%鱼藤酮乳油800倍液、0.5%藜芦碱可溶性液剂800倍液、0.3%苦参碱水剂800倍液3种植物源农药对防治茶树主要害虫的药效。结果表明:7.5%鱼藤酮乳油800倍液防治茶尺蠖和茶毛虫速效性和持效性好;0.5%藜芦碱可溶性液剂800倍液防治茶尺蠖和茶毛虫的速效性较好且持效性佳,其防治小绿叶蝉的速效性和持效性好;0.3%苦参碱水剂800倍液防治茶尺蠖持效性尚好,药后7d防效达到83.90%。

The efficacy of three kinds of botanical insecticides against main pests in tea platation were studied,the botanical insecticides including rotenone 7.5%EC,vertrine 0.5%SL and matrine 0.3%agent.The results showed that the rotenone 7.5%EC was best on quick and sustainable control effect against Ectropis oblique hmpulina Wehrli and Euproctis pseudocons persa Strand,vertrine 0.5%SL was better on quick and sustainable control effect against E. oblique hmpulina and E.pseudocons persa,and vertrine 0.5%SL was best on quick and sustainable control effect against Empoasca flasvescems Feb.,matrine 0.3%agent was well against E.oblique hmpulina,and its efficacy against E. oblique hmpulina was 83.90%after 7 d.