7种水基化杀虫剂对露地甘蓝小菜蛾的防治效果

Control Effect of Seven Kinds of Water-based Insecticides on Outdoor Cabbage Diamondback Moth

通过对7种水基化杀虫剂田间推荐剂量进行大田试验,评价了对露地甘蓝上小菜蛾的防治效果。结果表明,对小菜蛾防治效果在药后3 d达到80%以上的药剂为5%氯虫苯甲酰胺悬浮剂、4%高氯·甲维盐微乳剂、3%阿维菌素微乳剂、2.2%甲氨基阿维菌素苯甲酸盐微乳剂;药后7~14 d,除5%氯虫苯甲酰胺悬浮剂对小菜蛾的防治效果与药后3 d基本保持一致外,其他药剂的防治效果随着时间推移逐步下降,4.5%高效氯氰菊酯微乳剂对露地甘蓝小菜蛾的防效不理想,不建议田间单独使用。

The field experiments of seven water-based insecticides which under recommended dose were carried out to evaluate the effects on cabbage diamondback moth. The results showed that control effects of preparation of 5% chlorantraniliprole SC, preparation of4% beta-cypermethrin·emamectin benzoate ME, preparation of 3% avermectin ME and preparation of 2.2% emamectin benzoate ME were more than 80% after treatment 3 days. The control effect of preparations was gradually declined with time goes by after treatment 7-14 days, except that the effects of 5% chlorantraniliprole SC remained. The effect of 4.5% beta-cypermethrin ME was not good, so this preparation was not recommended to be used alone.