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试验结果表明,每666 7m2使用1 5%青虫扑毙EC32～96ml、40%烈虫爆EC50～75ml、20%叶虫宁EC32～96ml、20%劈力EC16～32ml,防治甜菜夜蛾均具有良好的防治效果。青虫扑毙、烈虫爆、叶虫宁速效性好,施药后1天防效分别达87 08%～95 24%、85 11%～92 62%、83 43%～89 98%。青虫扑毙、烈虫爆、劈力持效时间长。施药后3天达药效高峰,施药后4h遇雨,不影响药效。防治甜菜夜蛾,在幼虫3龄前施药,建议使用低剂量;对大龄幼虫及暴发时,建议使用高剂量,以提高防治效果。
The test results showed that 15 to 45% of the caterpillars killed by 66% of the 666m × 7m2 were EC32 ~ 96ml, EC50 ~ 75ml 40%, EC32 ~ 96ml 20% and EC16 ~ 32ml 20% Good control effect. The results showed that the control effect of pest insects, insectivorous insects and insects were good, and the control efficacies were 87 08% -95 24%, 85 11% -92 62% and 83 43% -89 98% respectively. Caterpillars killed, insects burst, split force lasting a long time. 3 days after application of drug efficacy peak, 4h after application of rain, does not affect the efficacy. Prophylaxis and control of beet armyworm, before the 3rd instar larvae application, it is recommended to use low doses; for older larvae and outbreaks, it is recommended to use high doses to improve the control effect.