植保无人机防治烟草靶斑病的复配药剂筛选  

Screening compounded agents suitable for control of tobacco target spot by plant protection UAVs

作　　者：靳瑞瑞 陈海涛 廖睿 江厚龙 李文文 孙现超[1] 陈国康[1] JIN Ruirui;CHEN Haitao;LIAO Rui;JIANG Houlong;LI Wenwen;SUN Xianchao;CHEN Guokang(College of Plant Protection,Southwest University,Chongqing 400716,China;Tobacco Leaf Company,Chongqing Branch of CNTC,Chongqing 400023,China;China Tobacco Guizhou Industrial Co.,Ltd.,Guiyang 550001,China)

机构地区：[1]西南大学植物保护学院,重庆市400716 [2]中国烟草总公司重庆市公司烟叶分公司,重庆市400023 [3]贵州中烟工业有限责任公司,贵阳市550001

出　　处：《烟草科技》2024年第9期40-47,共8页Tobacco Science & Technology

基　　金：重庆市烟草专卖局重点专项“重庆烟草叶部病害监测预警建模与植保无人机防控技术研究及应用”(B20221NY1313);“基于贵州中烟生态数智基地单元的原料保障关键技术集成与推广”(B20221NY1307)。

摘　　要：为筛选出适用于植保无人机防治烟草靶斑病的高效药剂,将8%井冈霉素可溶液剂分别与4种药剂(25%吡唑醚菌酯悬浮剂、430 g/L戊唑醇悬浮剂、40%咯菌腈悬浮剂和30%苯甲·丙环唑乳油)复配,通过室内毒力测定试验、盆栽防效试验、田间喷雾试验和田间防效试验筛选出适合植保无人机防治烟草靶斑病的复配药剂。室内毒力测定结果显示,井冈霉素与吡唑醚菌酯、戊唑醇、苯甲·丙环唑按照质量比7∶3、9∶1和2∶1复配共毒系数分别为353.3921、200.8317和197.3507,增效作用较强。盆栽防效试验结果显示,井冈霉素和吡唑醚菌酯(质量比7∶3)复配剂处理对烟草靶斑病的相对防效为67.46%,显著(P<0.05)高于其他处理。田间喷雾试验结果显示,井冈霉素和吡唑醚菌酯(质量比7∶3)复配剂在烟株中部的雾滴密度、沉积量和覆盖率分别比井冈霉素高50.96%、69.65%和82.02%。田间防效试验结果显示,井冈霉素和吡唑醚菌酯(质量比7∶3)复配剂与井冈霉素和戊唑醇(质量比9∶1)复配剂对烟草靶斑病的相对防效分别为61.83%和60.46%,显著高于井冈霉素(50.46%)。综上,复配剂中井冈霉素和吡唑醚菌酯(质量比7∶3)复配剂更适用于植保无人机防治烟草靶斑病。In order to screen highly effective agents suitable for the control of tobacco target spot by plant protection unmanned aerial vehicle(UAVs),8%jinggangmycin SL was mixed with 4 chemical agents(25%pyraclostrobin SC,430 g/L tebuconazole SC,40%fludioxonil SC,30%difenoconazole propiconazole EC),and through indoor toxicity test,pot control test,field spray test and field control effect test,the compounded agents suitable for the control of tobacco target spot by unmanned aerial vehicle were screened.The results of the indoor toxicity test showed that when jinggangmycin was mixed with pyraclostrobin,tebuconazole and difenoconazole propiconazole at the mass ratios of 7∶3,9∶1 and 2∶1,the co-toxicity coefficients were 353.3921,200.8317 and 197.3507,respectively,indicating their synergistic effects.The results of the pot control test showed that the relative control efficacy of the mixture of jinggangmycin and pyraclostrobin at the mass ratio of 7∶3 was 67.46%,significantly(P<0.05)higher than that of the other treatments.The results of the field spray test showed that the density,deposition and coverage of droplets on the middle part of tobacco plants treated with the mixture of jinggangmycin and pyraclostrobin at the mass ratio of 7∶3 were 50.96%,69.65%and 82.02%were higher than those treated with jinggangmycin.The results of the field control effect test showed that the relative control efficacy of the mixture of jinggangmycin and pyraclostrobin at the mass ratio of 7∶3 and that of jinggangmycin and tebuconazole at the mass ratio of 9∶1 were 61.83%and 60.46%,respectively,significantly(P<0.05)higher than that(50.46%)of jinggangmycin treatment.In conclusion,the mixture of jinggangmycin and pyraclostrobin at the mass ratio of 7∶3 is more suitable for the control of tobacco target spot by plant protection UAVs.

关 键 词：植保无人机 烟草靶斑病 复配药剂 相对防效 

分 类 号：S43[农业科学—农业昆虫与害虫防治]