The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Toxicities and Control Effect of Three Insecticides to Greenhouse Whitefly, Trialeurodes vaporariorum and Sweetpotato Whitefly Bemisia tabaci (Homoptera: Aleyrodidae)

몇 가지 살충제의 온실가루이와 담배가루이의 생육 단계별 살충효과 및 방제효과

  • Ha, Tae-Ki (Central Research Institute Kyung Nong Corp.) ;
  • Hwang, In-Cheon (Central Research Institute Kyung Nong Corp.) ;
  • Kim, Jong-Kwan (Central Research Institute Kyung Nong Corp.) ;
  • Song, Yoo-Han (Department of Agricultural Biology, College of Agriculture, Gyeongsang National University) ;
  • Kim, Gil-Hah (Department of Agricultural Biology, Chungbuk National University) ;
  • Yu, Yong-Man (Central Research Institute Kyung Nong Corp.)
  • Published : 2003.09.30
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Abstract

This study was carried out to evaluate toxicities of 3 registered insecticides to greenhouse whitefly(GWF), Trialeurodes vaporariorum and sweetpotato whitefly(SWF), Bemisia tabaci, B-biotype. Insecticide activities were evaluated by testing systemic action, residual effect in the laboratory, and control efficacy in the greenhouse. All experiments were tested at the recommended concentration(RC), half and a quarter concentrations of RC of each insecticides. Acetamiprid showed 45%, 42% ovicidal effect to greenhouse whitefly and sweetpotato whitefly at 40 ppm, respectively. Acetamiprid showed more than 97% larvicidal activities on the 3rd instars larvae of GWF and SWF at the recommended and its half concentrations. On the adults of the two whitefly species, acetamiprid and acetamiprid+ethofenprox showed more than 92% mortality even at half of recommended concentrations. Acetamiprid and acetamiprid+ethofenprox showed both residual effect and systemic activity. In the control efficacy test on GWF and SWF, 90% control values were obtained at the 3th day after treatments of acetamiprid and acetamiprid + ethofenprox by application with recommended concentration. These results indicate that acetamiprid and acetamiprid+ethofenprox can be used in the control of the two whitefly species in field.

본 연구에서는 3종 (acetamiprid, acetamiprid+etofenprox, etofenprox)의 살충제에 대한 온실가루이(Trialeurades vaparariarum)와 담배가루이 (Bemisia tabaci, B biotype)의 발육단계별 감수성을 조사하고, 침투이행성, 잔효성 및 방제효과를 평가하였다. 시험은 살충제의 추천농도를 비롯한 2 가지 농도 (ppm)로 수행하였다. 알에 대해서는 acetamiprid 단제 40ppm 처리시 온실가루이와 담배가루이에서 각각 45%, 42%의 부화억제효과를 나타내었으며, 3령 약충에 대해서는 acetamiprid 20 ppm 농도에서도 각각 97% 이상의 살충효과를 나타내었다. 그리고, 성충의 경우 acetamiprid 20 ppm 과 acetamiprid + etofenprox(12.5+40) ppm 농도에서도 92% 이상의 우수한 방제효과를 나타내었다. acetamiprid 와 acetamiprid + etofenprox는 성충에 대해서 잔효성뿐만 아니라 침투이행 효과도 나타내었다. 방제효과시험에서 acetamiprid와 acetamiprid+etofenprox를 추천농도로 처리시에 처리후 3일째부터 90% 이상의 방제효과를 나타내었다. 이상의 결과에서 acetamiprid 와 acetamiprid + etofenprox는 온실가루이와 담배가루이 성충과 약충의 방제에 효과적으로 이용될 수 있을 것으로 생각된다.

Keywords

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