【摘要】 【目的】为明确福建南平地区稻纵卷叶螟的抗药性现状和抗药性发展趋势，筛选出防治稻纵卷叶螟的高效药剂。【方法】连续两年采用浸叶法测定苦参碱、乙基多杀菌素、甲氨基阿维菌素、阿维菌素、虱螨脲、甲氧虫酰肼、氯虫苯甲酰胺、茚虫威和虫螨腈等9种杀虫剂对福建省南平地区稻纵卷叶螟田间种群的毒力，并进行田间防效试验，检验其田间防治效果。【结果】2021年毒力测定结果为：阿维菌素>乙基多杀菌素>虫螨腈>甲氨基阿维菌素>虱螨脲>甲氧虫酰肼>茚虫威>氯虫苯甲酰胺>苦参碱；2022年毒力测定结果为：阿维菌素>乙基多杀菌素>甲氨基阿维菌素>苦参碱>虱螨脲>甲氧虫酰肼>氯虫苯甲酰胺>虫螨腈>茚虫威。田间药剂防效对比试验结果显示：2021年6%乙基多杀菌素SC 27.00 g/hm~2剂量处理的杀虫效果最好，达到88.66%,6%乙基多杀菌素SC 20.25 g/hm~2、1.8%阿维菌素EC 24.30 g/hm~2剂量处理的杀虫效果达到80.00%以上；2022年15%茚虫威EC50.63g/hm~2剂量处理的杀虫效果最好，达到91.84%,6%乙基多杀菌素SC27.00g/hm~2、1.8%阿维菌素EC24.30g/hm~2剂量处理的杀虫效果达到90.00%以上。【结论】2021—2022年6%乙基多杀菌素SC、1.8%阿维菌素EC的防治效果较好且稳定。更多还原

【Abstract】 [Objective] This study aimed to clarify the current situation and development trend of the drug resistance of Cnaphalocrocis medinalis in Nanping, Fujian Province, and to screen out effective pesticides for controlling rice leaf rollers. [Method] In this experiment, the toxicity of nine insecticides, such as matrine, ethyl spinosad, emamectin, abamectin, lufenuron, methoxyfenozide, chlorantraniliprole, indoxacarb and chlorfenapyr, to the field population of Cnaphalocrocis medinalis in Nanping, Fujian Province, was determined for two consecutive years, and field control experiments were set up to verify the field control effects. [Result] The results of toxicity tests in 2021 were as follows: abamectin>ethyl spinosad>chlorfenapyr>emamectin>lufenuron>methoxyfenozide>indoxacarb>chlorantraniliprole>matrine. The results of toxicity tests in 2022 were as follows:abamectin>ethyl spinosad>emamectin>matrine>lufenuron>methoxyfenozide>chlorantraniliprole > chlorfenapyr >indoxacarb. The comparative test results of field pesticides showed that the insecticidal effect of 6% ethyl spinosad SC 27.00 g/hm~2 was the best in 2021, reaching 88.66%, and the insecticidal effects of 6% ethyl spinosad SC 20.25 g/hm~2 and 1.8% avermectin EC 24.30 g/hm~2 were over 80.00%. In 2022, the insecticidal effect of 15%indoxacarb EC 50.63 g/hm~2 was the best, reaching 91.84%, and the insecticidal effects of 6% ethyl spinosad SC 27.00 g/hm~2 and 1.8% avermectin EC 24.30 g/hm~2 were over 90.00%. [Conclusion] The control effects of 6%ethyl spinosad SC and 1.8% avermectin EC were good and stable in two years’ control.更多还原