Residue and Safety Use of Emamectin Benzoate in Ginger

• 作者: Feng Yizhi Li Wenping Liang Lin Lin Dongsen Ma Xingang Ren Yupeng Zhang Aijuan Zuo Bojun
• 来源期刊: Plant Diseases and Pests(植物病虫害研究:英文版)
• 学科: 化学
• 关键词: Emamectin BENZOATE GINGER RESIDUE
• 年，卷（期）: 2019,（4）
• 页码范围: 31-33
• 页数: 3页
• 分类号: O62

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.