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http://dx.doi.org/10.7585/kjps.2014.18.4.228

Residual Characteristics of a Systemic Insecticide Flonicamid and Its Metabolites in Sweet Pepper  

Seo, Eun-Kyung (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
Kim, Taek-Kyum (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
Hong, Su-Myeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
Kwon, Hye-Young (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
Gwon, Ji-Hyeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
Cho, Nam-Jun (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
Publication Information
The Korean Journal of Pesticide Science / v.18, no.4, 2014 , pp. 228-235 More about this Journal
Abstract
The residue levels of flonicamid and its metabolites, 4-(trifluoromethyl)nicotinic acid (TFNA) and N-4-(trifluoromethyl)nicotinoyl glycine (TFNG) in sweer pepper were investigated to examine the residual characteristics of analytes for 87 days after pesticide application. The pesticide was applied once at recommended dosage and double dosage by foliar sprays and the samples of fruits and leaves of sweet pepper were collected for each treatment. The residues of flonicamid in all of fruits and leaves decreased gradually over time, while the residue levels of TFNG metabolite exhibited tendency that increased for long periods and thereafter decreased. Total flonicamid residual concentrations containing metabolites residues in fruit samples increased consistently until 30 days post-application and higher residue levels than residues at 1 day post-application were detected from 30 day to 87 day after treatment. The residue pattern observed in fruit could be explained by the movement of TFNG from leaves to fruits of plant. Such residual characteristic was similarly found in samples treated both recommended dosage and double dosage.
Keywords
Flonicamid; Metabolite; Pesticide residue; Sweet pepper;
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Times Cited By KSCI : 3  (Citation Analysis)
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