水稻稻纵卷叶螟田间防治试验结果表明,21%哒嗪.茚虫威可湿性粉剂用量为1.2～1.5 kg/hm2,药后3 d的杀虫效果为88.54%～92.94%,与225 mL/hm215%茚虫威悬浮剂(90.42%)一致,明显好于2 250 mL/hm220%哒嗪硫磷乳油(81.58%);药后14 d的杀虫效果和保叶效果分别为91.20%～92.27%、93.86%～98.55%,显著或极显著优于各单剂的防效。21%哒嗪.茚虫威可湿性粉剂用量为1.2～1.5 kg/hm2,对稻纵卷叶螟的防治均有较好的速效性与持效性,且对水稻生长安全。 The results showed that 21% pyridazine, indoxacarb WP was 1.2 ~ 1.5 kg / hm2, and the insecticidal effect was 88.54% ~ 92.94% after 3 d, / hm215% indoxacarb was 90.42%, which was significantly better than that of 250ml / hm220% pyridasulfuron (81.58%). The insecticidal effect and leaf protection effect on the 14th day were 91.20% 92.27%, 93.86% ~ 98.55%, significantly or very significantly better than the control effect of a single dose. 21% pyridazine.Induconazole wettable powder dosage of 1.2 ~ 1.5 kg / hm2, the prevention and control of the rice leaf roller have a good effect and effectiveness, and the safety of rice growth.