The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Control Effects of different Concentrations and Mixtures of the commercial Bacillus thuringiensis Products against Moths

Bacillus thuringiensis 제품의 농도 및 혼합 조건에 따른 나방류 방제 효과

  • Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Zhu, Hong (Key Laboratory of Microbial Control, Anhui Agricultural University) ;
  • Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Sangyeob (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Park, Hong-Hyun (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Sang Guei (Crop Protection Division, National Academy of Agricultural Science, RDA)
  • 김정준 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 홍쭈 (중국 안휘농업대학) ;
  • 한지희 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 이상엽 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 박홍현 (농촌진흥청 국립농업과학원 작물보호과) ;
  • 이상계 (농촌진흥청 국립농업과학원 작물보호과)
  • Received : 2012.11.01
  • Accepted : 2012.12.04
  • Published : 2012.12.31
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Abstract

Beet armyworm (Spodoptera exigua), diamondback moth (Plutella xylostella) and tobacco cutworm (S. litura) are insect pests causing damage in many economically important vegetables in Korea. Bacillus thuringiensis, commonly known as Bt, has been available as an alternative insecticide for many years. Five commercial Bt products and the mixtures evaluate the control efficacy against three kinds of moths. These commercial Bt products had high control efficacy against $2^{nd}$ instar of diamondback moth, but didn't show high mortality against beet armyworm and tobacco cutworm. Mixtures of Bt products didn't have synergistic effects to the tested moths. Also application of twice and four times the recommended concentration didn't improve the control effects against the tested three species of moths.

담배거세미나방, 파밤나방, 배추좀나방은 중요 경제 작물의 재배, 수확 시에 해를 입히는 해충들이다. 이들 해충의 방제를 위해 Bacillus thuringiensis를 이용한 Bt제는 여러 해 동안 화학 살충제의 대체 방제 수단으로 이용되고 있다. 국내에 시판 중인 미생물 살충제의 방제 효율 증진을 위해 Bt제의 추천 농도 이상과 제품 간 혼합에 따른 효과 평가를 실내 생물검정을 통해 수행하였다. 본 연구에 사용된 5 제품 모두 추천농도에서 배추좀나방 2령 유충에 높은 방제 효과를 보였으나, 파밤나방과 담배거세미나방에는 낮은 살충율을 보였다. 추천농도의 2배액과 4배액 처리 및 Bt 제품들의 혼합 처리에서도 파밤나방과 담배거세미나방에서는 방제 상승 효과는 없었다.

Keywords

References

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