7种水基化杀虫剂对露地甘蓝小菜蛾的防治效果

摘要

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3d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7～14d,除5％氯虫苯甲酰胺悬浮剂对小菜蛾的防治效果与药后3d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 of 4％ 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.