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用20%虫酰肼·毒死蜱乳油防治十字花科蔬菜斜纹夜蛾,以24%虫酰肼乳油与48%毒死蜱乳油为对照,试验结果表明:20%虫酰肼.毒死蜱乳油110ml/667m2、120ml/667m2对斜纹夜蛾的防治效果比对照药剂24%虫酰肼乳油30ml/667m2和48%毒死蜱乳油150ml/667m2的防治效果好,差异极显著。该药持效期在7d以上,对甘蓝菜安全。建议生产上在斜纹夜蛾幼虫盛发期使用,使用浓度110ml/667m2～120ml/667m2。
Control of Spodoptera litura with 20% tebufenozide and chlorpyrifos was compared with that of 24% tebufenozide and 48% chlorpyrifos. The results showed that: 20% tebufenozide chlorpyrifos EC 110ml / 667m 2, 120ml / 667m2 on the control effect of Spodoptera litura than the control agent 24% tebufenozide 30ml / 667m2 and 48% chlorpyrifos 150ml / 667m2 control effect is good, the difference was significant. The drug persistence in more than 7d, safe for cabbage. Proposed production on the Spodoptera louse larvae Sheng period of use, the use of the concentration of 110ml / 667m2 ~ 120ml / 667m2.