高效氯氰菊酯与辛硫磷混用防治斜纹夜蛾应用技术研究

Application of the mixtures of beta-cypermethrin and phoxim to control Spodoptera litura (Fabricus)

对4．5％高效氯氰菊酯乳油与40％辛硫磷乳油混用防治斜纹夜蛾进行了田间试验。结果表明,每667m2用4．5％高效氯氰菊酯乳油20-30mL+40％辛硫磷乳油50mL对斜纹夜蛾 4龄以下幼虫,药后1-7d的防效可达90％以上,优于10％溴虫腈悬浮剂50mL的效果。两者混用具有经济、高效、安全的优点,适合于“无公害”蔬菜上使用,具有推广应用前景。

Field trials of mixtures of beta-cypermethrin and phoxim to control Spodoptera litura were conducted.The results showed that the control effect of beta-cypermethrin 4.5% EC 20- 30mL together with phoxim 40% EC 50mL per 667m^2 against Spodoptera litura before 4th instar within 1-7days after spraying were 90%, which were better than that of chlorfenapyr 10%SC 50mL per 667m^2. The mixtures were economical, effectual and safe, and especially suitable for non-polluted vegetable use.