Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Optimal Composition of Sex Attractant for Monitoring Adults of Spodoptera litura (Lepidoptera: Noctuidae) in Korea

담배거세미나방(Spodoptera litura) 성충의 예찰을 위한 최적 성유인제 조성

  • Jung, Chung Ryul (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Boo, Kyung Saeng (College of Agriculture and Life Sciences, Seoul National University) ;
  • Bae, Soondo (Nambu Plant Environment Research) ;
  • Han, Kyeung Sik (Department of Smart Gardening, Shingu College)
  • 정충렬 (국립산림과학원 산림약용자원연구소) ;
  • 부경생 (서울대학교 농업생명과학대학) ;
  • 배순도 (남부식물환경연구소) ;
  • 한경식 (신구대학교 원예디자인학과)
  • Received : 2022.02.11
  • Accepted : 2022.02.23
  • Published : 2022.03.01
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Abstract

This study was conducted to determine the optimal composition of sex attractant for monitoring adults of the tobacco cutworm, Spodoptera litura, in Korea. Lures of different compositions from the two sex pheromone components the female, (Z,E)-9,11-tetradecadienyl acetate (Z9E11-14:Ac) and (Z,E)-9,12-tetradecadienyl acetate (Z9E12-14:Ac), were compared for male attraction using synthetic chemicals, rubber septa, and funnel traps in soybean and peanut fields. After sequential tests were conducted using three sets of the two components different ranges from 5:5 to 10:1, from 9:1 to 99:1, and from 9:1 to 39:1, the 19:1 ratio was identified as the most efficient composition. However, S. litura males were barely caught in the trap of the Z9E11-14Ac single component lure. The results show that both the sex attractant compounds are necessary for monitoring adults S. litura males. The higher the pheromone amount in the dispenser in the range from 0.1 to 10 mg, the more males were attracted. Furthermore, the trap height of 1.5 m was optimal for male capture.

본 연구는 담배거세미나방 국내 개체군의 예찰에 필요한 성유인제의 최적 조성을 찾기 위해 수행하였다. 담배거세미나방 암컷 성충에서 알려진 두 성페로몬 성분인 (Z,E)-9,11-tetradecadienyl acetate, (Z,E)-9,12-tetradecadienyl acetate를 5.5 ~ 10.0 및 9:1 ~ 99.1, 9:1 ~ 39:1 비율 사이에 여러 조성으로 만들어 고무격막 방출제에 담아 펀넬트랩을 이용하여 콩과 땅콩포장에서 수컷 성충에 대한 유인력을 비교한 결과, 두 성분의 19:1 비율이 가장 적절한 유인 조성으로 결정하였다. 그러나 Z9E11-14:Ac 단독 성분 미끼에는 수컷 성충이 거의 유인되지 않았다. 이 결과는 담배거세미나방 성충 예찰용의 성유인제 구성에는 두 성페로몬 화합물이 반드시 필요한 성분임을 나타낸다. 미끼에 담긴 성페로몬은 0.1 ~10 mg 사이에서 함량이 증가할수록 유인된 수가 많았다. 적절한 트랩 설치 높이는 1.5 m로 결정하였다.

Keywords

Acknowledgement

채소 및 밭작물을 가해하는 나방류 해충에 대한 성페로몬 동정, 활용 및 예찰방법이 필요하여 진행하였으며, 고(故) 부경생 교수님의 지도하에 본 연구를 추진하였습니다. 다시 한번 고(故) 부경생 교수님께 깊이 감사드립니다.

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