【摘要】 为筛选高效防治豇豆蓟马的药剂,研究了100g/L溴氰虫酰胺可分散油悬浮剂45g a.i./hm2、50g a.i./hm2、60g a.i./hm2 3种浓度的防治效果。结果表明:45~60g a.i./hm2剂量处理,药后1~10d的防治效果为34.57%~94.49%。其中,60g a.i./hm2剂量处理后1~3d的防效为50.60%~80.72%,5~10d防效为91.84%~94.49%;与对照药剂10%吡虫啉可湿性粉剂60g a.i./hm2处理相比,速效性略差,而持效性相当。试验期间未发现该药剂在供试剂量下对豇豆产生药害,可供生产中推广应用。更多还原

【Abstract】 To explore the high-efficient pesticide on controlling thrips on cowpea,the control effects of cyantraniliprole 100g/L OD with 45g a.i./hm2,50g a.i./hm2 and 60g a.i./hm2on controlling thrips were determined via the method of field spray.The results showed that the control effects of cyantraniliprole 100g/L OD with dosage of 45~60g a.i./hm2 after 1~10days were 34.57%~94.49%. The control effects of cyantraniliprole 100g/L OD with dosage of 60g a.i./hm2 after 1~3days treatment were 50.60% ~80.72%,and 91.84% ~94.49% after 5~10days,the persist control effects had no significant difference compared with imidacloprid 10% WP at 60g a.i./hm2,but the imidacloprid 10% WP did have more rapid control effects. Meanwhile,there was no phytotoxicity at these doses,the cyantraniliprole 100g/L OD can be applied and extended in cowpea field.更多还原