PDMS系列助剂对10%甲维盐·氯虫苯甲酰胺悬浮剂防治草地贪夜蛾的增效作用  

Synergistic effect of PDMS series adjuvants on emamectin benzoate·chlorantraniliprole 10% SC against Spodoptera frugiperda

作　　者：胡飞 徐丽娜 胡本进 徐婷婷 毕思佳 吴振晨 吴艳 李桂萍 陈永田 王年安 苏贤岩 王振营[3] HU Fei;XU Lina;HU Benjin;XU Tingting;BI Sijia;WU Zhenchen;WU Yan;LI Guiping;CHEN Yongtian;WANG Nian’an;SU Xianyan;WANG Zhenying(Institute of Plant Protection and Agro-Products Safety,Anhui Academy of Agricultural Sciences,Hefei 230031,China;Wuwei Station of Plant Protection,Anhui Province,Wuwei 238300,China;State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China)

机构地区：[1]安徽省农业科学院植物保护与农产品质量安全研究所,合肥230031 [2]安徽省无为市植保站,无为238300 [3]植物病虫害综合治理全国重点实验室,中国农业科学院植物保护研究所,北京100193

出　　处：《植物保护》2024年第1期304-310,315,共8页Plant Protection

基　　金：国家重点研发计划(2021YFD1400700)。

摘　　要：本研究采用室内毒力测定,助剂润湿铺展性能和田间防治效果评价研究了自研“PDMS”系列助剂(PDMS-01、PDMS-02、PDMS-03、PDMS-04)对10%甲维盐·氯虫苯甲酰胺悬浮剂防治草地贪夜蛾的增效作用。结果表明,PDMS系列助剂均可提高10%甲维盐·氯虫苯甲酰胺悬浮剂的毒力;7.5~17.5 g/L处理药液中添加助剂PDMS-01,药液润湿时间降低172.84~176.59 s,药液表面张力降低15.26~16.28 mN/m,玉米叶片正、背面静态接触角分别降低13.39°~24.12°和12.02°~27.56°;10%甲维盐·氯虫苯甲酰胺悬浮剂减量30%(21 g/667m^(2))并添加PDMS-01后,无人机施药对草地贪夜蛾的3 d和14 d田间防效分别可达76.62%和82.36%,与未减量处理(30 g/667m^(2))的防效差异不显著,与添加KQ-103、凯耀高航处理差异也不显著。助剂PDMS-01可显著改善10%甲维盐·氯虫苯甲酰胺悬浮剂药液的润湿铺展性能,减少药剂用量30%对草地贪夜蛾仍有较高防效,且速效性和持效性较好。The synergism of self-developed“PDMS”adjuvants(PDMS-01,PDMS-02,PDMS-03,PDMS-04)on emamectin benzoate•chlorantraniliprole(EBC)10%SC against Spodoptera frugiperda were investigated in this study.The results showed that all the four PDMS adjuvants could increase the toxicity of EBC 10%SC.When PDMS-01 was added into the 7.5-17.5 g/L EBC 10%SC,the wetting time of the liquid was reduced by 172.84-176.59 s,the surface tension of the liquid was reduced by 15.26-16.28 mN/m,and the static contact angle of the front and back surface on corn leaves was reduced by 13.39°-24.12°and 12.02°-27.56°,respectively.The field control effect of the EBC 10%SC at the dosage of 21 g/667m^(2)(30%reduction)against S.frugiperda could reached 76.62%and 82.36%3 d and 14 d,respectively,after mixed with PDMS-01,which show no significant difference from that of the routine dosage(30 g/667m^(2))and the treatments mixed with commercial adjuvant(KQ-103 and Kaiyaogaohang).The addition of PDMS-01 can significantly improve the wetting and spreading performance of EBC 10% SC and enhance its quick-acting and persistent effect on S.frugiperda under the condition of 30% reduction.

关 键 词：助剂PDMS 10%甲维盐·氯虫苯甲酰胺悬浮剂 毒力测定 润湿性能 草地贪夜蛾 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]