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http://dx.doi.org/10.7585/kjps.2014.18.3.123

Establishment of Pre-Harvest Residue Limit for Buprofezin and Penthiopyrad during Cultivation of Oriental melon (Cucumis melon var. makuwa)  

Kim, Hea Na (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Seong Beom (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Choi, Eun (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Woo, Min Ji (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Kim, Ji Yoon (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Saravanan, Manoharan (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Hur, Jang Hyun (Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University)
Publication Information
The Korean Journal of Pesticide Science / v.18, no.3, 2014 , pp. 123-129 More about this Journal
Abstract
The present work was aimed to determine the pre-harvest residue limits (PHRLs) and the safety management of commonly used pesticides namely buprofezin and penthiopyrad on oriental melon (Cucumis melon var. makuwa). In this study, the buprofezin (diluted two thousand fold) and penthiopyrad (diluted four thousand fold) were sprayed single time on oriental melon in the cultivation areas Sangju (site 1) and Sungju (site 2). Oriental melon were randomly collected from the both areas at the end of 0 (2 hours after pesticides spaying), 1, 2, 3, 5, 7, 9 and 10 days. For analysis, each samples were partitioned twice (80 and 70 mL) with dichloromethane and purified by florisil SPE cartridge. Finally, the residual amounts of both pesticides in all samples were analyzed using gas chromatography/nitrogen phosphorus detector (GC/NPD). In this study, the method limit of quantification (MLOQ) for both buprofezin and penthiopyrad in oriental melon was found to be $0.01mg\;kg^{-1}$ and their recovery levels were 91.1~98.6% and 90.0~104.6%, respectively. Further, the calculated biological half-life for buprofezin and penthiopyrad in oriental melon were 3.9 and 3.5, and 3.0 and 2.7 days in site 1 and 2, respectively. The results of this study found that the PHRLs for buprofezin and penthiopyrad were 4.24 and $2.31mg\;kg^{-1}$, respectively at 10 days before harvest. Consequently, the present study suggest that the residual amounts of both pesticides will be lower than the maximum residue limits (MRLs) when oriental melon is harvested.
Keywords
Buprofezin; Maximum Residue Limit; Oriental melon; Penthiopyrad; Pre-Harvest Residue Limit;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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