Residue and Safety Use of Emamectin Benzoate in Ginger  

作　　者：Feng Yizhi Zhang Aijuan Liang Lin Lin Dongsen Ren Yupeng Ma Xingang Li Wenping Zuo Bojun 

机构地区：[1]Shandong Key Laboratory for Chemical Pesticide,Shandong Academy of Pesticide Sciences,Ji'nan 250033,China [2]Qixia Comprehensive Administrative Law Enforcement Bureau,Yantai 265300,China

出　　处：《Plant Diseases and Pests》2019年第4期31-33,38,共4页植物病虫害研究（英文版）

基　　金：Supported by Agricultural Science and Technology Innovation Project of Shandong Academy of Agricultural Sciences(CXGC2018E19)

摘　　要：[Objective]The paper was to guide scientific and rational use of emamectin benzoate in ginger.[Method]A field experiment was conducted to determine residue and degradation dynamics and final residue of emamectin benzoate in ginger.The residue of emamectin benzoate in ginger was determined by high performance liquid chromatography-mass spectrometry(HPLC-MS/MS).[Result]The half-life of emamectin benzoate in ginger was 2.2-3.4 d.As 5%emamectin benzoate WDG was sprayed on ginger at 7.5 and 11.25 g·a.i/hm^2 for consecutive 1-2 times,the residues of emamectin benzoate in ginger harvested at 7,14 and 21 d post spraying were lower than the quantitative limit of the method(0.01 mg/kg),and were lower than the stipulation in Japan as well(0.1 mg/kg).[Conclusion]It is safe to use emamectin benzoate in ginger with the harvest interval of 7 d according to the recommended dose.[Objective] The paper was to guide scientific and rational use of emamectin benzoate in ginger. [Method] A field experiment was conducted to determine residue and degradation dynamics and final residue of emamectin benzoate in ginger. The residue of emamectin benzoate in ginger was determined by high performance liquid chromatography-mass spectrometry(HPLC-MS/MS). [Result] The half-life of emamectin benzoate in ginger was 2.2-3.4 d. As 5% emamectin benzoate WDG was sprayed on ginger at 7.5 and 11.25 g·a.i/hm^2 for consecutive 1-2 times, the residues of emamectin benzoate in ginger harvested at 7, 14 and 21 d post spraying were lower than the quantitative limit of the method(0.01 mg/kg), and were lower than the stipulation in Japan as well(0.1 mg/kg). [Conclusion] It is safe to use emamectin benzoate in ginger with the harvest interval of 7 d according to the recommended dose.

关 键 词：Emamectin BENZOATE GINGER RESIDUE 

分 类 号：O62[理学—有机化学]