Changes of pesticide residues in bagged pear and bagging paper during the field and storage

재배 및 저장기간 중 유대재배 배의 농약잔류량 변화

  • Ihm, Yang-Bin (National Institute of Agricultural Science & Technology) ;
  • Kyung, Kee-Sung (National Institute of Agricultural Science & Technology) ;
  • Park, Young-Sup (Naju Pear Research Institute, National Horticultural Research Institute) ;
  • Lee, Hee-Dong (National Institute of Agricultural Science & Technology) ;
  • Kim, Jin-Bae (National Institute of Agricultural Science & Technology) ;
  • Im, Gun-Jae (Rural Development Administration) ;
  • Ryu, Gab-Hee (National Institute of Agricultural Science & Technology)
  • 임양빈 (농업과학기술원 농약안전성과) ;
  • 경기성 (농업과학기술원 농약안전성과) ;
  • 박영섭 (원예연구소 나주배연구소) ;
  • 이희동 (농업과학기술원 농약안전성과) ;
  • 김진배 (농업과학기술원 농약안전성과) ;
  • 임건재 (농촌진흥청 농업자원과) ;
  • 류갑희 (농업과학기술원 농약안전성과)
  • Published : 2002.12.27

Abstract

This experiment was conducted to elucidate the effects of fruit bagging on the amounts of pesticide residues on/in pears with two pesticides, chlorpyrifos 25% WP, and penconazole 5% WP, and two pear cultivars, Niitaka and Hwangeum-bae. Residues of chlorpyrifos and penconazole in bagged pears were only $0.4{\sim}27%$ of those in non-bagged one. Residues of both pesticides in bagged and non-bagged pears were steeply reduced in the field but slowly reduced during storage. Residues of chlorpyrifos were more in the peel than in the flesh, while penconazole in bagged pear was evenly distributed in the peel and flesh. Chlorpyrifos was evenly distributed in outer bag and inner bag irrespective of bag materials, while most of penconazole was found in outer bag rather than in inner bag. To produce safer pear from pesticide residues, removal of bag before storage is recommended.

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