The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Insecticidal activity of mixed formulation with buprofezin and single formulation without buprofezin against citrus mealbug, Planococcus citri Risso (Hemiptera: Pseudococcidae)

귤가루깍지벌레에 대한 단제 및 buprofezin 혼합제의 살충 활성

  • Park, Young-Uk (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) ;
  • Lee, Sun-Young (Apple Research Station, NHRI, RDA) ;
  • Yun, Seung-Hwan (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)
  • 박영욱 (충북대학교 농업생명환경대학 식물의학과) ;
  • 박준원 (충북대학교 농업생명환경대학 식물의학과) ;
  • 이선영 (국립원예특작과학원 사과시험장) ;
  • 윤승환 (충북대학교 농업생명환경대학 식물의학과) ;
  • 구현나 (충북대학교 농업생명환경대학 식물의학과) ;
  • 김길하 (충북대학교 농업생명환경대학 식물의학과)
  • Received : 2012.06.10
  • Accepted : 2012.06.23
  • Published : 2012.06.30
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Abstract

Nineteen registered insecticides including 8 mixed formulations with buprofezin and 11 single formulations which is not including buprofezin were evaluated by spray application for their toxicity against adult and nymph of citrus mealybug, Planococcus citri. Five mixed formulations with buprofezin such as buprofezin 15EC+acetamiprid 4EC, buprofezin 10SC+clothianidin 3SC, buprofezin 20WP+dinotefuran 15WP, buprofezin 20SC+thiacloprid 5SC, and buprofezin 20SC+thiamethoxam 3.3SC showed high insecticidal activity (>93%) against nymph and adult of P. citri. Insecticidal activities of EPN 45EC, fenitrothion 50EC and methidathion 40EC in organophosphorous group showed 90 to 93% against nymph only. In addition to, insecticidal activities of acetamiprid 8WP, clothianidin 8SC, dinotefuran 20WG and thiamethoxam 10WG in neonicotinoids group showed above 90% against nymph only. In systemic and residual effect, five mixed formulations that was already proved to have high insecticidal activity showed low toxicity with below 60% against $3^{rd}$ instar nymph of P. citri in tomato and rose under greenhouse. Control efficacy of five mixed formulations with buprofezin was above 90%, 80% and 70% at 5 days after treatment (DAT), 10 DAT and 15 DAT, respectively.

Buprofezin과 조합된 8종의 합제와 buprofezin을 포함하지 않은 11종의 단제 즉, 등록된 총 19종의 살충제를 대상으로 귤가루깍지벌레(Planococcus citri)의 약충과 성충에 분무처리하여 살충효과를 평가하였다. Buprofezin과 조합된 합제가운데 귤가루깍지벌레의 약충과 성충에 대해 93% 이상의 높은 살충활성을 나타내는 것은 5조합(buprofezin 15EC+acetamiprid 4EC, buprofezin 10SC+clothianidin 3SC, buprofezin 20WP+dinotefuran 15WP, buprofezin 20SC+thiacloprid 5SC, buprofezin 20SC+thiamethoxam 3.3SC) 이었다. 유기인계 약제 3종(EPN 45EC, fenitrothion 50EC 및 methidathion 40EC)은 약충에 대해서만 90~93%의 살충활성을 나타내었으며, 네오니코티노이드계 약제 4종(acetamiprid 8WP, clothianidin 8SC, dinotefuran 20WG 및 thiamethoxam 10WG)도 약충에 대해서만 90% 이상의 살충활성을 나타내었다. 그리하여 buprofezin과 조합된 8종의 합제가운데 93% 이상의 살충활성을 나타낸 5종 합제의 시설하우스 토마토와 장미에 대한 침투이행성과 잔효성 검정에서 모두 60% 이하의 낮은 살충활성을 나타내었다. 또한 시설하우스 장미에서 buprofezin과 조합된 5종 합제의 방제효과는 5일차까지 90% 이상, 10일차까지 80% 이상, 15일차까지 70% 이상으로 높게 나타났다.

Keywords

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