Field efficacy of afidopyrofen 50 g/L DC against Schizaphis piricola(Matsumura)
刘红艳 1曲向新 2司树鼎 2徐晓厚2
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作者信息
1. 山东省聊城市东昌府区韩集镇农林水综合服务中心,山东 聊城 252000
2. 山东省龙口市现代果树技术研究所,山东 龙口 265718
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摘要
为明确新型杀虫剂 50 g/L双丙环虫酯可分散液剂对梨二叉蚜的田间防治效果,于2022、2023 年在山东省龙口市诸由观镇冷王村进行了田间药效试验.结果表明:50 g/L双丙环虫酯可分散液剂在18 g a.i./hm2用量时防效最好,药后3d,防效达94.02%以上,药后7d,防效达92.68%以上,显著优于常规药剂70%吡虫啉水分散粒剂.50 g/L双丙环虫酯可分散液剂在 15、12.86 g a.i./hm2 时,药后 3、7d防效同样优于 70%吡虫啉水分散粒剂.50 g/L双丙环虫酯可分散液剂可有效防治梨二叉蚜,推荐使用剂量 15～18 g a.i./hm2,且对梨树安全.
Abstract
In order to evaluation the field control effect of afidopyrofen 50 g/L DC against Schizaphis piricola(Matsumura),the field trial was carried out in Longkou City,Shandong Province in 2022 and 2023.The results showed that afidopyrofen 50 g/L DC had a good control effect against S.piricola at dosage 12.86 and 18 g a.i./ha,which was significantly better than imidacloprid 70%WG.The control effect was excellent when afidopyrofen 50 g/L DC at dosage 18 g a.i./ha.And the control effect was above 94.02%on the 3 d after application and above 92.68%on 7 d after application.The control effect of afidopyrofen 50 g/L DC at dosage 12.86 and 15 g a.i./ha were also better than imidacloprid 70%WG on 3 and 7 d after application.Afidopyrofen 50 g/L DC had significantly control effect against S.piricola with the recommended dosage of 15-18 g a.i./hm2,and was safe to pear trees.
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