Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Assessment of the Effects of Some Insecticides on Mortality of Earthworm (Eisenia fetida)

수종 살충제가 줄지렁이 치사에 미치는 영향평가

  • Na, Young-Eun (National Institute of Agricultural Science and Technology, RDA) ;
  • Bang, Hae-Son (National Institute of Agricultural Science and Technology, RDA) ;
  • Kang, Kee-Kyung (National Institute of Agricultural Science and Technology, RDA) ;
  • Han, Min-Su (National Institute of Agricultural Science and Technology, RDA) ;
  • Ahn, Young-Joon (School of Agricultural Biotechnology Seoul National University)
  • 나영은 (농촌진흥청 농업과학기술원) ;
  • 방혜선 (농촌진흥청 농업과학기술원) ;
  • 강기경 (농촌진흥청 농업과학기술원) ;
  • 한민수 (농촌진흥청 농업과학기술원) ;
  • 안용준 (서울대학교 농생명공학부)
  • Published : 2005.09.30
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Abstract

The toxic effects of 12 commercially available insecticides on the earthworm, Eisenia fetida (Savigny), were evaluated using artificial soil, surface sprayed soil, immersion, and contact filter tests. The risk to earthworm was assessed by the TER (toxic exposure ratio) value, which was calculated by the formula, TER=NOEC/PEC (predicted environmental concentration). TER was 3 for methomyl SL, 20 for carbaryl WP, 20 for phosphamidon SL, 30 for imidacloprid WP, and 60 for dichlorvos EC the in artificial soil test. At recommended, the earthworm mortality to methomyl SL reached 50% in the surface sprayed soil test, 72% in the immersion test, 30% in the contact filter paper test, whereas that to imidacloprid WP reached 56, 32, and 100 respectively. As a result of the four methods, methomyl SL and imidacloprid WP would be toxic insecticides to earthworm.

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References

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