Enhanced Effectiveness of Spodoptera litura Nucleopolyhedrovirus with Organic Acids and Functional Matters

유기산, 기능성물질 혼합에 의한 담배거세미나방 핵다각체병바이러스의 병원성 증진효과

  • 김선곤 (전남농업기술원 식물환경연구과) ;
  • 박종대 (전남농업기술원 식물환경연구과) ;
  • 김도익 (전남농업기술원 식물환경연구과) ;
  • 박진영 (신안군농업기술센터) ;
  • 최형국 (전남농업기술원 식물환경연구과)
  • Published : 2004.03.01

Abstract

This experiment was conducted to improve activity of Spodoptera litura Nucleopoly-hedrovirus (SINPV) combined with organic and functional matters. In combination of SINPV mixed with organic matters, LT$_{50}$ values of SINPV 1.0${\times}$10$^{5}$ PIBs/$m\ell$ combined with boric acid of 2,000 ppm were 4.5 days. It was 1.5 days shorter than SINPV 1.0${\times}$10$^{5}$ PIBs/$m\ell$ alone. The body weight of larva infected with SINPV 1.0${\times}$10$^{5}$ PIBs/$m\ell$ combined with boric acid of 2,000ppm was not increased, and S. litura was completely dead in 7 days after treatment. It suggested that addition of boric acid in SINPV application enhanced the pathogenicity against S. litura larvae. In laboratory experiment of combination of SINPV with functional matters, LT$_{50}$values of SINPV 1.0${\times}$10$^4$ PIBs/$m\ell$ alone were 7.3 days, but those of SINPV 1.0${\times}$10$^4$ PIBs/$m\ell$ with electrolyzed oxidizing water, pyroligneous liquor or kitosan were 10.4, 9.3 and 11.2 days, respectively. Functional matter could be suppressed the insecticidal activity of SINPV

담배거세미나방 핵다각체병바이러스(SINPV)의 살충력 증가를 위하여 유기산 및 기능성 물질을 첨가하여 활성을 검정한 결과는 다음과 같다. 핵다각체병바이러스(NPV) 1${\times}$$10^{5}$ PIBs/$m\ell$에 ascorbic acid, succinic acid, sulfanilic acid 2,000ppm을 바이러스 1${\times}$$10^{5}$ PIBs/$m\ell$에 첨가하였을 때 각각 7.0일, 7.일, 10.7일로 바이러스 단독으로 처리한 6.0일보다 더 높게 나타났으나 boric acid 2,000ppm을 첨가한 경우 L $T_{50}$은 4.5일로서 단독처리보다 1.5일 짧았다. 유충 체중변화에서도 boric acid는 2,000ppm에서 7일째 이후 생존하는 개체가 없어 가장 효과가 좋은 것으로 나타났으며 1,000ppm과 500ppm에서도 체중이 증가하지 않아 바이러스 활성 증진을 지속시키는 물질로 판단되었다. 기능성 물질과 혼합 처리에서는 바이러스 1${\times}$$10^4$ PIBs/$m\ell$ 단독 처리는 L $T_{50}$이 7.4일이 걸리는 반면 담배거세미나방 핵다각체병바이러스와 전해산화수, 키토산, 목초액 혼합처리는 모두 살충기간이 길어져 혼합효과가 없었다. 담배거세미나방 핵다각체병바이러스 농도 1.0${\times}$10$_{6}$, $10^{8}$ PIBs/$m\ell$와 기능성 물질을 혼합하였을 때도 같은 경향으로 오히려 바이러스 병원성 억제효과가 나타났다.

Keywords

References

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