The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Chemical Control Effect Against Spot Clothing Wax Cicada, Lycorma delicatula (Hemiptera: Fulgoridae) Nymphs and Adults

꽃매미(Lycorma delicatula) 약충과 성충에 대한 약제방제 효과

  • Kim, Sun-Kook (Chungbuk Provincial ARES Grape Research Institute) ;
  • Lee, Gi-Yeul (Chungbuk Provincial ARES Grape Research Institute) ;
  • Shin, Yon-Ho (Dept. of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Kim, Gil-Bah (Dept. of Plant Medicine, College of Agriculture, Life and Environment Sciences, Chungbuk National University)
  • 김선국 (충북농업기술원 포도연구소) ;
  • 이기열 (충북농업기술원 포도연구소) ;
  • 신윤호 (충북대학교 농업생명환경대학 식물의학과) ;
  • 김길하 (충북대학교 농업생명환경대학 식물의학과)
  • Received : 2010.12.03
  • Accepted : 2010.12.13
  • Published : 2010.12.31
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Abstract

This study was carried out to investigate the toxicities of five registered insecticides to the Lycorma delicatula nymphs and adults. Insecticidal activities were evaluated by testing systemic and residual effects in the laboratory, and control efficacy in the vineyard. For the 3rd nymphal instars and adults, etofenprox+diazinon, chlorpyrifos, etofenprox, dinotefuran and imidacloprid showed perfect insecticidal activity. The systemic effects of dinotefuran and etofenprox+diazinon on grape roots at half concentration were showed the adult mortality of 82.2% and 84.4%, respectively. Chlorpyrifos at recommended concentration was showed mortality of 86.0%. The leaf systemic effects at recommended and half concentrations of all insecticides except dinotefuran were lower than 65% but the mortality at double concentration of chlorpyrifos, dinotefuran, etofenprox were more than 82%. The residual effect between etofenprox+diazinon and dinotefuran at recommended and double concentrations were 100% at 14 days after treatment, the other insecticides have low efficacy. All the four insecticides showed 87% control value on nymphs in the field test and adults appeared more than 96% control value st and adinotefuran, etofenprox+diazinon, however, the other insecticides decreased to 59.1 % and 61.2%. Therefore, dinotefuran and etofenprox+diazinon showing high systemic effects to roots and long residual effects to leafs have high control efficacies.

본 연구는 꽃매미(Lycorma delicatula)의 방제약제 선발을 목적으로 시판되고 있는 5종 살충제에 대한 침투이행성, 잔효성 및 방제효과를 평가하였다. 꽃매미 3령약충과 성충에 대해서 chlorpyrifos, etofienprox+diazinon, etofenprox, dinotefuran, imidacloprid 모두 100% 살충활성을 보였다. 5종 약제의 배수, 반수, 추천농도에 대한 실험결과 뿌리의 침투이행성 실험은 dinotefuran, etofenprox+diazinon의 반수농도에서 각각 82.2%와 84.4%의 성충 치사율을 보였으며, chlorpyrifos는 추천농도에서 86.0% 치사율을 나타냈다. 엽면적 침투이행은 반수농도와 추천농도에서 dinotefuran을 제외하고 치사율이 모두 65%이하로 낮았으나, 배수농도에서는 ch1orpyrifos, dinotefuran, etofenprox에서 82% 이상의 치사율을 보였다. 약제 간 잔효성 비교는 dinotefuran, etofenprox+diazinon의 배수와 추천농도에서 14일 동안 100%의 살충효과를 보였으며 나머지 약제는 효과가 낮았다. 노지 포도원에서 실시한 방제실험 결과 약충은 14일까지 4약제 모두 87%의 방제가를 보였고, 성충은 dinotefuran, etofenprox+diazinon에서 96%이상 치사율을 보인 반면, 나머지 약제는 각각 59.1%와 61.2%로 낮았다. 따라서, 뿌리와 잎에 침투이행이 높고 잔효성이 우수한 dinotefuran, etofenprox+diazinon이 야외 포장에서의 방제효과도 높았다.

Keywords

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