Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Factors Influencing Field Monitoring of the Oriental Fruit Moth, Grapholita molesta, with Sex Pheromone

성페로몬을 이용한 복숭아순나방(Grapholita molesta) 모니터링에 영향을 주는 요인

  • Kim, Yong-Gyun (Department of Bioresource Sciences, Andong National University) ;
  • Jung, Sung-Chae (Green Agro Tech, Inc.) ;
  • Bae, Sung-Woo (Department of Bioresource Sciences, Andong National University) ;
  • Kwon, Bo-Won (Department of Bioresource Sciences, Andong National University) ;
  • Yoon, Hyang-Mi (Department of Chemistry, Andong National University) ;
  • Hong, Yong-Pyo (Department of Chemistry, Andong National University)
  • Published : 2007.12.30
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Abstract

Three active components (Z8-12:Ac, E8-12:Ac, and Z8-12:OH) are known in sex pheromone of the oriental fruit moth, Grapholita molesta, and have been commercially available to apply for population monitoring and mating disruption. However, there have been variation among commercial products in pheromone composition and amount impregnated in each pheromone releaser. This study was performed to optimize factors influencing on pheromone monitoring of G. molesta by analyzing pheromone composition/amount, effective period of releaser, and trap type/placement in apple trees. High purity of Z8-12:Ac component was effective to attract males, in which 96% or more of cis acetate isomer component appeared to be optimal composition. Pheromone amounts ($0.01-1\;{\mu}g$) impregnated in each rubber dispenser did not give significant effect on monitoring during 90 days from June to August. "Delta" trap was much more efficient than "cone" trap to collect males. Trap installation was another factor, in which placing traps at canopy level was much efficient than at trunk or ground levels. Pheromone trap monitoring with these optimal factors indicated three to four adult peaks from June to September in addition to high overwintering population from April to May in pesticide-applied orchards in Andong, Korea.

복숭아순나방(Grapholita molesta)의 세 가지 성페로몬 성분(Z8-12:Ac, E8-12:Ac, Z8-12:OH)이 알려져 있으며, 이들은 상용화되어 해충집단 모니터링과 교미교란에 응용되고 있다. 그러나 이들 상용화 제품들을 살펴보면, 성페로몬 성분비 및 각 방출기에 들어있는 유효성분 량에서 있어서 상이했다. 본 연구는 성페로몬을 이용한 복숭아순나방 모니터링에 있어서 수컷 유인과 포획에 대한 변동을 줄 수 있는 요인들을 밝히고, 이들 요인의 최적화를 시도하였다. 이를 위해 성페로몬 성분비 및 함량, 유효방출기간 그리고 트랩 형태 및 설치높이를 분석하였다. 이상적 모니터링을 위해서는 높은 농도(96% 이상)의 Z8-12:Ac 성분이 효과적이었다. 그러나 방출기에 들어 있는 성페로몬 함량은 $0.01-1\;{\mu}g$ 농도에서 야외 설치 이후 90일 동안(6-9월) 차이가 없었다. 트랩은 델타형이 원뿔형 보다 효과적이었으며, 이 트랩의 위치는 과수의 수관부위가 수컷을 유인하는 데 이상적이었다. 이러한 이상적 모니터링 변수를 이용하여 정기적으로 화학농약살포가 이뤄지는 안동 지역의 사과농가에서 복숭아순나방을 모니터링한 결과, 4-5월에 있는 월동세대 이후 3-4회의 성충발생 피크를 감지할 수 있었다.

Keywords

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