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Surface dissipation and foliar penetration of acetamiprid on tea leaves in the presence or absence of adjuvants

文献类型： 外文期刊

作者： Gao, Wanjun 1 ; Du, Xinyi 1 ; Gao, Zili 1 ; Dai, Haochen 1 ; Liu, Dongna 2 ; Doherty, Jeffery 4 ; Clark, John M. 4 ; Hou, Ruyan 3 ; Luo, Fan 2 ; He, Lili 1 ;

作者机构： 1.Univ Massachusetts, Dept Food Sci, Amherst, MA 01002 USA

2.Sichuan Acad Agr Sci, Tea Res Inst, Tea Refining & Innovat Key Lab Sichuan Prov, Chengdu 610066, Peoples R China

3.Anhui Agr Univ, Sch Tea & Food Sci & Technol, State Key Lab Tea Plant Biol & Utilizat, Anhui Prov Key Lab Food Safety Monitoring & Qual C, Hefei 230036, Peoples R China

4.Massachusetts Pesticide Anal Lab, Amherst, MA 01003 USA

关键词： Acetamiprid insecticide; Adjuvants; Surface dissipation; Foliar penetration; SERS

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）

ISSN： 0023-6438

年卷期： 2024 年 205 卷

页码：

收录情况： SCI

摘要： This study is to investigate the surface dissipation and foliar penetration of acetamiprid following application to live tea plants in the presence and absence of two adjuvants (Alligare 90 (R) (R) and Peptoil (R)). (R)). SERS mapping protocol with a self-assembled AuNP mirror as substrates was utilized for in situ and real time pesticide analysis. The surface dissipation analysis showed that acetamiprid with Alligare 90 (R) (R) had the lowest dissipation rate (34%) compared to acetamiprid alone (60%) or with Peptoil (R) (R) (44%), indicating the addition of Alligare 90 (R) (R) was more effective in reducing the surface dissipation of acetamiprid than Peptoil (R). (R). The study also investigated the foliar penetration of acetamiprid into tea leaves with and without adjuvants using SERS and LC-MS/MS. The study concludes that the two adjuvants tested can enhance spreadability, surface stability, and foliar penetration of acetamiprid applied on tea leaves. The information will facilitate the development and application of efficient and safe pesticide formulations.

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