【摘要】 草地贪夜蛾是新入侵我国的农业害虫,本试验评价了7种药剂对草地贪夜蛾的防效。结果表明:甲氨基阿维菌素苯甲酸盐、斜纹夜蛾核型多角体病毒、氯虫·噻虫嗪3种药剂防效均在95%以上,并持效期较长;粘颗·苏云菌+甲氨基阿维菌素苯甲酸盐、甲维·虫螨腈2种药剂在药后7d达到最佳效果,但有效期较短,可能与草地贪夜蛾幼虫移动范围较大有关;粘颗·苏云菌、氟铃·茚虫威、吡丙·虫螨腈3种药剂介于上述5种处理之间,且持效性较好。建议药剂交替轮换使用,以延缓抗药性的产生。更多还原

【Abstract】 Spodoptera grassland is a newly emerged agricultural pest in China. The control effect of7 insecticides against Spodoptera grassland was evaluated. The results showed that the control effects of the three insecticides were over 95% with long lasting effective period,and the two of them provided the best effects after 7 days of treatment,but with short effective period,which might be caused by the comparatively large range movement of the larva. Bacillus mucilaginosus,fipronil + indoxacarb and pyriproxyfen + chlorfenapyr performed moderately compared to the five treatments mentioned above,but provided a long effective period. Therefore,it is suggested that the products should be used alternately to prevent the development of resistance.更多还原