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田间小区试验结果表明,5.1%甲氨阿维·虫酰肼可湿性粉剂对番茄和白菜地的甜菜夜蛾均有较好的防治效果。在番茄地甜菜夜蛾卵孵化期施药,850~2000倍液,药后3d的防效最高,达74.92%~94.96%,药后7d已有新的幼虫孵化,防效开始下降;在白菜地甜菜夜蛾不同虫龄混发期施药,药后5d的防效最高,为83.85%~95.52%。对菜青虫有很好的兼治作用,而且对番茄和白菜安全。可以作为防治甜菜夜蛾的有效药剂推广使用,推荐使用浓度为850~1200倍。
Field trial results showed that 5.1% of metamylase and tebufenozide WP had good control effects on beet worms in tomato and cabbage fields. In the tomato beet armyworm eggs incubation period, 850 ~ 2000 times the liquid, 3d after the highest control efficiency of 74.92% ~ 94.96%, 7d after the new larvae have hatched, control began to decline; in cabbage Beet armyworm insects at different stages of mixed age mixed drug application, the highest control effect 5d after drug, 83.85% ~ 95.52%. Cabbage worm has a good role both in the rule, but also on the safety of tomatoes and cabbage. It can be used as an effective medicament for the prevention and control of beet armyworm. The recommended concentration is 850 ~ 1200 times.