25%吡蚜酮·SP-1可分散油悬浮剂的研制

共毒系数法确定了吡蚜酮和SP-1的最佳配比,通过试验筛选得到了25%吡蚜酮·SP-1可分散油悬浮剂的最优配方,并考察了所制制剂对水稻稻飞虱的田间药效。25%吡蚜酮·SP-1可分散油悬浮剂各项性能指标符合标准要求。田间药效试验结果显示,25%吡蚜酮·SP-1可分散油悬浮剂对稻飞虱的速效性、防效、持效性均好于对照药剂25%吡蚜酮悬浮剂。

Development of Pymetrozine+SP-1 25%OD

The mass ratio of pymetrozine and SP-1 was determined by co-toxicity coefficient method, and the optimal formulation of pymetrozine + SP-1 25% OD was obtained by screening emulsifiers, dispersants, thickeners, and the control efficacy of pymetrozine + SP-1 25% OD against rice planthopper was tested. The results showed that pymetrozine + SP-1 25% OD had excellent physical and chemical properties, met the requirements of OD. The field control efficacy trials showed that pymetrozin + SP-1 25% OD could control rice planthopper effectively.