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田间药效试验结果表明,吡蚜酮·异丙威40%悬浮剂对水稻稻飞虱有较好的防治效果,其中药后2d 40g/667m2的总体校正防效为80.6%,显著优于对照药剂吡蚜酮25%可湿性粉剂25g/667m2的防效,与对照药剂异丙威20%乳油150mL/667m2的防效相当,而药后7、14、21d 40g/667m2的总体校正防效也分别达89.4%、91.5%和80.9%,表明速效性较好,持效期较长,安全性好,因此可以在生产上加以推广应用。
The results of field efficacy test showed that 40% suspending agent of pymetrozine and isoprocarb had a good control effect on rice planthopper, and the overall corrected control effect of 40g / 667m2 2d after treatment was 80.6%, which was significantly better than the control The control effect of the 25% WP of 25% WP at 25g / 667m2 was the same as that of the control agent IC50 at 20% EC of 150ml / 667m2, while the overall calibration control effect of 40mg / 667m2 at 7,14,21 days Respectively, up to 89.4%, 91.5% and 80.9%, indicating that the quick-acting is better, the holding period is longer, and the safety is good. Therefore, it can be popularized and applied in production.