50 g/L双丙环虫酯可分散液剂对烟蚜的防治效果  

Control effect of 50 g/L afidopyropen DC against Myzus persicae

作　　者：侯园园 徐传涛 王秀芳[1] 纪桂霞 徐蓬军[1] 邓海滨 任广伟[1] HOU Yuanyuan;XU Chuantao;WANG Xiufang;JI Guixia;XU Pengjun;DENG Haibin;REN Guangwei(Tobacco Research Institute,Chinese Academy of Agricultural Sciences,Qingdao 266101,Shandong,China;Luzhou Branch of Sichuan Provincial Tobacco Company,Luzhou 646000,Sichuan,China;Guangdong Institute of Tobacco Science,Shaoguan 512026,Guangdong,China)

机构地区：[1]中国农业科学院烟草研究所,山东省青岛市266101 [2]四川省烟草公司泸州市公司,四川省泸州市646000 [3]广东省烟草科学研究所,广东省韶关市512026

出　　处：《烟草科技》2023年第9期30-35,共6页Tobacco Science & Technology

基　　金：中国烟草总公司重大科技项目“烟蚜成灾致害及其天敌生态控害机制”[110202201017(LS-01)]。

摘　　要：为明确50 g/L双丙环虫酯可分散液剂对烟田烟蚜的防治效果,以70%(质量分数)吡虫啉水分散粒剂为对照药剂,通过室内毒力测定和刺探电位图谱(Electrical penetration graph,EPG)技术,测定了50 g/L双丙环虫酯可分散液剂对烟蚜的毒力并分析了其对烟蚜取食行为的影响,同时进行了田间药效试验。室内毒力测定结果表明,50 g/L双丙环虫酯可分散液剂和70%吡虫啉水分散粒剂均对烟蚜具有较好的防治效果,其LC_(50)值分别为5.592和9.203 mg/L。EPG监测结果显示,经50 g/L双丙环虫酯可分散液剂处理后烟蚜取食行为发生了显著变化,非刺探波(np波)的持续时间显著高于清水处理和70%吡虫啉水分散粒剂处理,表明50 g/L双丙环虫酯可分散液剂可有效降低烟蚜的取食能力。田间药效试验结果表明,50 g/L双丙环虫酯可分散液剂对烟蚜具有较好的防控作用,施药后7 d对烟蚜的防效高于99%,持效期为14 d。综上,50 g/L双丙环虫酯可分散液剂对烟田烟蚜有良好防效。In order to clarify the control effect of 50 g/L afidopyropen dispersible concentrate(DC)against Myzus persicae in tobacco fields,using 70%(mass fraction)imidacloprid water dispersible granules(WG)as the control,the toxicity of 50 g/L afidopyropen DC to M.persicae was determined by laboratory toxicity test.Its effect on the feeding behavior of M.persicae was analyzed by electrical penetration graph(EPG)technology,and the field efficacy tests were conducted.The results of the laboratory toxicity test showed that both 50 g/L afidopyropen DC and 70%imidacloprid WG had good control effects on M.persicae,and their LC50 values were 5.592 mg/L and 9.203 mg/L,respectively.The results of EPG monitoring showed that after the treatment with 50 g/L afidopyropen DC,the feeding behavior of M.persicae was significantly changed,and the duration of non-probing(np)wave was significantly higher than that of the water treatment and 70%imidacloprid WG treatment,indicating that 50 g/L afidopyropen DC could effectively reduce the feeding capacity of M.persicae.The results of the field efficacy tests showed that 50 g/L afidopyropen DC had a good control effect on M.persicae.The control effect of 50 g/L afidopyropen DC against M.persicae was higher than 99%seven days after application,and the effective period reached fourteen days.In conclusion,50 g/L afidopyropen DC can effectively control M.persicae in tobacco fields.

关 键 词：双丙环虫酯 烟蚜 毒力测定 刺探电位图谱 防治效果 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]