Invention of the Portable Bark Remover for Control of Pine Wilt Disease by Disruption of Oviposition of Insect Vector (Monochamus alternatus)

소나무재선충병 매개충 솔수염하늘소(Monochamus alternatus) 방제를 위한 휴대용 수피제거기 개발 및 산란 방지 효과

  • Kim, Joon Bum (Warm-Temperate and Subtropical Forest Research Center) ;
  • Park, Young Kyu (Forest Training institute of the Korea Forest Service)
  • 김준범 (국립산림과학원 난대.아열대산림연구소) ;
  • 박영규 (산림교육원)
  • Published : 2013.06.30

Abstract

Pine wilt disease caused by pine wood nematode, Bursaphelenchus xylophilus (Steiner et Buhrer) Nickle, has become the most serious threat to pine trees in Korea since 1988. Pine wood nematode is transferred to healthy trees by Monochamus alternatus (Coleoptera: Cerambycidae) during its maturation feeding and female oviposition. A typical control method against insect vectors in Korea is fumigation of the dead trees by using metam-sodium SL (25%). However, this method is not environment friendly because of the forest contamination by chemical application and destroying landscape by plastic cover. Portable Bark Remover (PBR) was invented to reduce these environmental problems. The vectors oviposit under the bark of the newly dead trees only. Debarking infested trees prevents the vectors from laying eggs and eventually, they can not complete their life cycle. The PBR is a modified debarking device that is attached on the top of the electrical chain saw, which allows ease and rapid debarking of the infested trees. The new method by PBR is expected to be more economic and effective than other conventional methods such as "crushing", "burning" and "fumigation".

소나무재선충(Bursaphelenchus xylophilus)에 의해서 발생되는 소나무재선충병(Pine wilt disease)은 우리나라 소나무림에 피해를 주고 있다. 소나무재선충은 매개충인 솔수염하늘소(Monochamus alternatus Hope) 성충이 건전한 소나무의 신초를 갉아먹는 후식과 산란을 통해서 옮겨진다. 현재까지의 소나무재선충병 방제에는 metam-sodium SL(25%)약제를 사용하여 고사한 소나무를 훈증하는 것이 주된 방법이었으나 농약에 의한 환경오염이나 훈증을 위해 피복하는 비닐로 인해 산림경관을 해치는 문제가 발생하였다. 따라서 휴대용 수피제거기(Portable Bark Remover)는 산림 사업용 엔진톱 끝부분에 장착되어, 소나무재선충병 감염 고사목 방제 현장에서 간단하고 빠르게 수피를 제거 함으로써 매개충의 산란과 부화 등의 서식처 제공이 차단되어 결국 온전한 생활사를 완성 할 수 없어 죽게 되도록 친환경적으로 개발되었다. 또한 소나무재선충병 매개충 방제를 위한 휴대용 수피제거기의 활용은 파쇄, 소각, 훈증 등의 기존의 방제 방법에 비하여 비용의 절감과 높은 방제 효과를 기대 할 수 있다.

Keywords

References

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