Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Selection of Crop Protectant for Friendly Environmental Control of Spodopfera exigua (Lepidoptera: Noctuidae)

파밤나방(Spodoptera exigua)의 환경친화적 방제를 위한 작물보호제의 선발

  • Jin, Da-Yong (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University) ;
  • Cho, Min-Su (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University) ;
  • Choi, Su-Yeon (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University) ;
  • Paek, Seung-Kyoung (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University) ;
  • Kim, Jin-Su (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University) ;
  • Youn, Young-Nam (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University) ;
  • Hwang, In-Cheon (Central Research Institute, Kyung Nong Co.) ;
  • Yu, Yong-Man (Dept. Applied Biology, Coll. Agricul. And Life Sciences, Chungnam National University)
  • 김대용 (충남대학교 농업생명과학대학 응용생물학과) ;
  • 조민수 (충남대학교 농업생명과학대학 응용생물학과) ;
  • 최수연 (충남대학교 농업생명과학대학 응용생물학과) ;
  • 백승경 (충남대학교 농업생명과학대학 응용생물학과) ;
  • 김진수 (충남대학교 농업생명과학대학 응용생물학과) ;
  • 윤영남 (충남대학교 농업생명과학대학 응용생물학과) ;
  • 황인천 (㈜경농 중앙연구소) ;
  • 유용만 (충남대학교 농업생명과학대학 응용생물학과)
  • Published : 2008.03.30
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Abstract

For the development of friendly environmental control of the beet armyworm, Spodoptera exigua that is too hard to control in the field, 25 insecticides were chosen from 58 registered to the beet armyworm, and bioassayed. There are 12 insecticides with neurotoxical activities, 10 with insect growth regulators and 3 Bacillus thuringiensis products. Among 12 insecticides with neurotoxical activities, mortality of S. exigua was 100% with emamectin benzoate (EC) and indoxacarb (WP) within 3 and 5 days after application, respectively. Otherwise, WG and SC of indoxacarb, Indoxacarb + etofenprox (WP) and pyridalyl (EW) were showed up to 91 %. Methoxyfenozide + spinosad (SC) was better than any other insect growth regulator as 100% mortality within 3 days after application. And methoxyfenozide (WP), tebufenozide (WP) and methoxyfenozide (SC) were 92% by 5 days. However, 3 kinds of B. thuringiensis products were showed under 35% mortality within 5 days from first spray.

생리, 생태적 특성 때문에 난방제 해충으로 알려져 있는 파밤나방에 대한 친환경적인 방제방법을 개발하기 위하여 국내 등록/판매 중인 화학농약과 생물농약에 대해 생물검정을 실시했다. 국내 파밤나방에 등록되어 있는 총 58개 약제 중에서 선발된 25종의 살충제에 대하여 약효시험을 실시하였으며, 그중 신경독(Neurotoxin)작용으로 해충을 치사시키는 살충제(12종)와 해충의 성장을 저해하는 생장조절제(IGR) 및 혼합제(10종) 그리고 생물농약 B떼(3종)로 구분하여 살충효과를 검정하였다. 신경독작용을 하는 12종의 약제 중 가장 속효성이며 살충성이 좋은 것은 Avermectin계인 Emamectin benzoate (EC)가 처리 3일 후에 100%의 효과를 나타냈었고, 다음으로 Oxadiazine계인 Indoxacarb (WP)가 처리 5일 후에 100%의 사망율을, Indokacarb (WG), Indokacarb (SC), Indoxacarb + Etofenprox (WP), Pyridalyl (EW)등 4종 약제가 91%이상의 약효를 나타내었다. 한편, 처리된 10종의 곤충생장조절제 중 Diacylhydrazine계인 Methoxyfenozide + spinosad (SC) 혼합제는 처리 3일 후에 100%의 빠른 살충률을 보였고, Methoxyfenozide (WP), Tebufenozide (WP), Methoxyfenozide (SC) 등 3종 약제는 처리 5일 후에 92%이상의 살충률을 나타냈다. 생물농약인 3종류의 Bacillus thuringiensis 제는 모두 파밤나방에 35%이하의 살충률을 나타내었다.

Keywords

References

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