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对甜菜夜蛾的防治已成为蔬菜害虫防治中最难解决的问题之一。田间小区试验结果表明,18%虫酰肼·高氯乳油在甜菜夜蛾卵孵化高峰期施药,对白菜地的甜菜夜蛾有较好的防治效果,喷施1200￣800倍液,药后2d的防效为86.25%￣89.55%,药后5d的防效为87.55%￣94.89%,药后10d已有新的幼虫孵化,防效开始下降;对斜纹夜蛾亦有较好的兼治作用。对白菜安全,可作为防治甜菜夜蛾的有效药剂推广使用,推荐使用浓度为800￣1200倍液。
The control of beet armyworm has become one of the most difficult problems in vegetable pest control. The field plot test results showed that 18% tebufenozide and high chlorine EC were applied at the peak of eggs hatching in beet armyworm and had a good control effect on beet armyworm in cabbage field. After spraying 1200 ~ 800 times, 2d control efficiency of 86.25% ~ 89.55%, 5d after the drug control effect was 87.55% ~ 94.89%, 10d after the new larvae have hatched, the control effect began to decline; on Spodoptera litura also have a better role in treating . Cabbage safety can be used as an effective control of beet armyworm to promote the use of recommended concentration of 800 ~ 1200 times solution.