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Earthworm Risk Assessment of Picoxystrobin Considering Rainfall after Spraying

Picoxystrobin 살포후 강우를 고려한 지렁이 위해성 평가

  • Hong, Soonsung (National Agro-Food Safety Department, Academy of Agricultural Science) ;
  • You, Are-Sun (National Agro-Food Safety Department, Academy of Agricultural Science) ;
  • Jeong, Mihye (National Agro-Food Safety Department, Academy of Agricultural Science) ;
  • Lee, Jae Bong (National Agro-Food Safety Department, Academy of Agricultural Science) ;
  • Ihm, Yangbin (National Agro-Food Safety Department, Academy of Agricultural Science)
  • 홍순성 (국림농업과학원 농산물안전성부) ;
  • 유아선 (국림농업과학원 농산물안전성부) ;
  • 정미혜 (국림농업과학원 농산물안전성부) ;
  • 이제봉 (국림농업과학원 농산물안전성부) ;
  • 임양빈 (국림농업과학원 농산물안전성부)
  • Received : 2013.10.29
  • Accepted : 2013.11.25
  • Published : 2013.12.31

Abstract

This study was performed in order to assess the risk of earthworm when the picoxystrobin was sprayed in Korean orchard. The acute toxicity ($LC_{50}$) of picoxystrobin active ingredient(99.3%) and soluble concentrate (25%) against earthworm was showed 10.93 mg/kg and 8-16 mg/kg respectively. This earth worm toxicity value means that the picoxystrobin do not show the earthworm risk in present Korean risk assessment system. However, in the test which was simulated the rainfall after spraying, all the earthworm were died in 24 hours. This result indicated that the risk assessment for the earthworm should be considered the weather condition.

Acknowledgement

Supported by : 농촌진흥청

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