농약과학회지 (The Korean Journal of Pesticide Science)

  • 제17권4호
  • /
  • Pages.363-370
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  • 2013
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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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감자뿔나방에 대한 16종 살충제의 살충활성과 생물적 특성에 미치는 영향

Insecticidal Activity and Effect on Biological Characteristic of 16 Insecticides Against Phthorimaea Operculella (Lepidoptera: Gelechiidae)

  • 안정진 (충북대학교 농업생명환경대학 식물의학과) ;
  • 박준원 (충북대학교 농업생명환경대학 식물의학과) ;
  • 김주일 (국립식량과학원 고령지농업연구센터) ;
  • 김현경 (충북대학교 농업생명환경대학 식물의학과) ;
  • 구현나 (충북대학교 농업생명환경대학 식물의학과) ;
  • 김길하 (충북대학교 농업생명환경대학 식물의학과)
  • An, Jeong-Jin (Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Park, Jun-Won (Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Kim, Ju-Il (Highland Agriculture Research Center, Rural Development Administration) ;
  • Kim, Hyun Kyung (Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Koo, Hyun-Na (Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Kim, Gil-Hah (Department of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University)
  • 투고 : 2013.10.30
  • 심사 : 2013.11.29
  • 발행 : 2013.12.31
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초록

시판중인 16종의 살충제를 이용하여 감자뿔나방(Phthorimaea operculella)의 발육단계별 약제감수성을 조사하고, 효과가 뛰어난 약제를 선발하여 접촉 및 섭식독성과 잔효성을 조사하였다. 또한 성충에 대한 사충률과 수명 및 산란수에 미치는 영향을 조사하였다. 감자뿔나방의 알과 번데기에 대해서는 spinosad만이 추천농도에서 71.1%의 부화억제율과 66.7%의 우화억제율을 나타내었다. 3령 유충에 대한 섭식독성과 접촉독성 평가에서 90% 이상의 섭식독성을 나타낸 약제는 fenitrothion ($LC_{50}$ 336.6 ppm), esfenvalerate ($LC_{50}$ 8.6 ppm), ethofenprox ($LC_{50}$ 35.7 ppm), emamectin benzoate ($LC_{50}$ 0.05 ppm)이고, 90% 이상의 접촉독성을 나타낸 약제는 esfenvalerate ($LC_{50}$ 0.87 ppm), ethofenprox ($LC_{50}$ 16.5 ppm), emamectin benzoate ($LC_{50}$ 0.53 ppm), spinosad ($LC_{50}$ 2.48 ppm)이었다. 성충에 대해서 추천농도로 살충율을 조사한 결과, 약제처리 48시간 후 deltamethrin과 spinosad가 100%, esfenvalerate, ethofenprox, thiamethoxam이 40~60%였으며, 그 외 약제는 효과가 거의 없었다. 암컷성충의 산란수는 무처리의 101개에 비하여 esfenvalerate 3.0개, emamectin benzoate 6.7개, dinotefuran 8.3개로 크게 억제되었다. 성충수명은 무처리의 9.3일에 비하여 시험약제는 7.3~8.3일로 약간 짧았다. 잔효성은 emamectin benzoate가 처리 후 14일차까지도 100%의 높은 살충효과를 나타내었고, ethofenprox가 7일차까지 90% 이상의 살충효과를 보였다.

Susceptibility of each developmental stage of Phthorimaea operculella (Lepidoptera: Gelechiidae) were investigated using 16 insecticides which are available in the market in Korea. For the eggs and pupae, only spinosad showed a 71.1% inhibition rate for egg hatchability and a 66.7% inhibition rate for emergence. For the 3rd instar larvae, the feeding toxicities were over 90% for fenitrothion ($LC_{50}$ 336.6 ppm), esfenvalerate ($LC_{50}$ 8.6 ppm), ethofenprox ($LC_{50}$ 35.7 ppm), and emamectin benzoate ($LC_{50}$ 0.05 ppm). Furthermore, the contact toxicities were over 90% for esfenvalerate ($LC_{50}$ 0.87 ppm), ethofenprox ($LC_{50}$ 16.5 ppm), emamectin benzoate ($LC_{50}$ 0.53 ppm), and spinosad ($LC_{50}$ 2.48 ppm) at the recommended concentrations. Deltamethrin and spinosad yielded 100% mortality for adult P. operculella 48 h after treatment. The adult female fecundity was inhibited by deltamethrin, esfenvalerate, emamectin benzoate, spinosad and dinotefuran, which were significantly different from the control. The adult longevities (7.3-8.3 days) were reduced by approximately 1-2 days compared with the control (9.3 day). The emamectin benzoate maintained 100% insecticidal activity 14 days after treatment and ethofenprox maintained over 90% activity 7 days after treatment.

키워드

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피인용 문헌

  1. Two Species of Gelechiidae (Lepidoptera: Gelechioidea) New to Korea vol.56, pp.4, 2013, https://doi.org/10.5656/ksae.2017.08.0.011
  2. Changes in Spatiotemporal Distribution of the Potato Tuber Moth (Phthorimaea operculella) in South Korea in Response to Climate Change Determined Using a Field Survey vol.10, pp.9, 2013, https://doi.org/10.3390/agronomy10091270