농약과학회지 (The Korean Journal of Pesticide Science)

  • 제18권4호
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  • Pages.417-421
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  • 2014
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  • 1226-6183(pISSN)
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  • 2287-2051(eISSN)
한국농약과학회 (The Korean Society of Pesticide Science)
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곤충병원성 곰팡이 Metarhizium anisopliae FT83의 파밤나방 생육단계별 살충활성

Insecticidal Activity of Metarhizium anisopliae FT83 against the Different Stages of Beet Armyworm, Spodoptera exigua

  • 한지희 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 김정준 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 이상엽 (농촌진흥청 국립농업과학원 농업미생물과)
  • Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Lee, SangYeob (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
  • 투고 : 2014.11.12
  • 심사 : 2014.12.09
  • 발행 : 2014.12.31
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초록

난방제 해충인 파밤나방의 친환경적 방제를 위하여 토양에서 곤충병원성 곰팡이를 수집한 다음, 파밤나방 유충에 대해 우수한 방제효과가 있는 곰팡이 Metarhizium anisopliae FT83을 분리하여 파밤나방의 생육단계별 살충율을 검정하였다. M. anisopliae FT83의 파밤나방 1령~3령 유충에 대한 살충율은 $1{\times}10^8conidia/ml$ 수준에서 100%이었고 반수치사시간은 0.5일, 2.6일, 2.5일이었으며 4령과 5령에 대한 살충율은 각각 $83.3{\pm}6.2%$, $86.0{\pm}5.7%$였으며 반수치사시간은 4.2일, 3.6일이었다. 번데기와 알에 대한 살충율도 100%로 파밤나방의 전 생육단계에 대해 높은 살충활성을 나타내었다.

The beet armyworm, Spodoptera exigua is pest which is difficult to control. For eco-friendly beet armyworm managements, we isolated entomopathogenic fungi from soil samples by insect-bait method using Tenebrio molitor and conducted bioassay to larvae of beet armyworm. The result of bioassay, a selected strain Metarhizium anisopliae FT83 caused 100% mortality against first ~ third instar larva of S. exigua at $1{\times}10^8conidia/ml$ and medial lethal time ($LT_{50}$) were 0.5 days, 2.6 days and 2.5 days respectively. Mortality against fourth and fifth larvae were $83.3{\pm}6.2%$ and $86.0{\pm}5.7%$ and medial lethal time ($LT_{50}$) were 4.2 days and 3.6 days respectively. Mortality against pupae and eggs of S. exigua were 100%. M. anisopliae FT83 showed high virulence at all developmental stages of S. exigua.

키워드

참고문헌

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피인용 문헌

  1. 흰점박이꽃무지 사육 환경에 따른 곤충 병원성 곰팡이 Metarhizium anisopliae의 병원성 vol.53, pp.1, 2014, https://doi.org/10.11614/ksl.2020.53.1.073
  2. Insecticidal Effect of Entomopathogenic fungus, Isaria fumosorosea FG340 to Thrips palmi vol.24, pp.4, 2014, https://doi.org/10.7585/kjps.2020.24.4.374