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[目的]探究20%噻虫胺·醚菊酯SC对稻飞虱的田间防治效果。[方法]在田间条件下比较了20%噻虫胺·醚菊酯SC和25%吡蚜酮WP对稻飞虱的防治效果。[结果]20%噻虫胺·醚菊酯SC施药量在450、600 g/hm2时,药后3 d对稻飞虱的防效分别为88.77%和96.21%,药后7 d的防效分别为89.82%和92.40%,药后14 d的防效分别为92.20%和95.48%,其防治效果与目前生产上应用的吡蚜酮的防治效果基本一致。[结论]20%噻虫胺·醚菊酯SC可作为稻飞虱防治药剂的替换品种用于生产。
[Objective] The research aimed to investigate the field control effect of clothianidin 20% SC on planthoppers. [Method] The control effect of 20% clothianidin ethyrin SC and 25% pymetrozine WP on planthoppers was compared under field conditions. [Result] The control efficacy of 20% clothianidin and etofenprox at SC dosage of 450 and 600 g / hm2 were 88.77% and 96.21%, respectively, three days after treatment. The results showed that the control effects were 89.82% and 92.40% respectively, and the control effects on the 14th day after treatment were 92.20% and 95.48% respectively. The control effect was basically consistent with the control effect of pymetrozine used in production. [Conclusion] 20% clothianidin ethyrin SC could be used as a substitute for the control planthoppers in planthoppers.