热带作物学报2017，Vol.38Issue(5)：932-938,7.DOI:10.3969/j.issn.1000-2561.2017.05.024
联苯肼酯与炔螨特混配对朱砂叶螨的联合毒力作用
The Joint Toxicity Effect of Bifenazate and Propargite Against Tetranychus cinnabarinus
摘要
Abstract
Bifenazate is a new type of acyl acetonitrile hydrazide acaricide which was registered in China in 2008.In order to use bifenazate scientifically and reasonably,and prolong the serv ice life,the joint toxicity effect of bifenazate and propargite against Tetranychus cinnabarinus was evaluated in this study using bioassay and UV Spectrophotometry.The results showed that,with the effective components ratio of 215:73 for 43％ bifenazate suspension concentrate (SC) and 73％ propargite emulsifiable concentrate (EC),the cotoxicity coefficient (CTC) was 163.0,which showed synergistic toxicity to T.cinnabarinus as the CTC over 120.While T.cinnabarinus was treated by the mixture of bifenazate and propargite with the concentration of 20.00,14.29,11.11,9.09 and 7.69 mg/L for 24 h,the activity of glutathione S-transferase (GST) in T.cinnabarinus was 3.371,3.645,3.932,4.045 and 4.089 mmol/(mgPro·min),which was significantly (p＜0.05) lower than the activity of GST in T.cinnabarinus being treated by bifenazate [7.250,6.818,6.714,6.441 and 5.811 mmol/(mgPro·min)] and propargite [10.130,9.789,9.142,8.932 and 8.441 mmol/(mgPro·min)] at the same concentrations.The data indicated that the mixture of bifenazate and propargite showed a joint inhibition effect on the activity of GST in T.cinnabarinus.Moreover,the activities of mixed-function oxidase (MFO),carboxylesterase (CarE) and acetylcholinesterase (AchE) in T.cinnabarinus were not significantly different compared with those being treated by bifenazate and propargite individually.This study would provide a theoretical basis for reasonable application of bifenazate and propargite in T.cirmabarinus control.关键词
朱砂叶螨/联苯肼酯/炔螨特/联合毒力/谷胱甘肽S-转移酶(GST)/多功能氧化酶(MFO)/羧酸酯酶(CarE)/乙酰胆碱酯酶(AchE)Key words
Tetranychus cinnabarinus/bifenazate/propargite/joint toxicity effect/glutathione S-transferase (GST)/mixed-function oxidase (MFO)/carboxylesterase (CarE)/acetylcholinesterase (AchE)分类
农业科技引用本文复制引用
王雪,梁晓,卢芙萍,卢辉,伍春玲,陈青..联苯肼酯与炔螨特混配对朱砂叶螨的联合毒力作用[J].热带作物学报,2017,38(5):932-938,7.基金项目
国家木薯产业技术体系害虫防控岗位科学家专项(No.CARS-12-hncq) （No.CARS-12-hncq）
科技部星火计划重点项目(No.2015GA800002) （No.2015GA800002）
中央级公益性科研院所基本科研业务费专项(No.2016hzs1J021). （No.2016hzs1J021）
