Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Fruit and Leaf Damage by Conogethes punctiferalis (Lepidoptera: Crambidae) and Acrocercops transecta (Lepidoptera: Gracillariidae) in Walnut Orchards

호두나무 포장 내 복숭아명나방(나비목: 포충나방과)과 굴피가는나방(나비목: 가는나방과)에 의한 호두열매 및 잎 피해

  • Jung, Jong-Kook (Division of Insect Pests and Disease, National Institute of Forest Science) ;
  • Kwon, Hyeok Jun (Division of Insect Pests and Disease, National Institute of Forest Science) ;
  • Kim, Hwang (Division of Insect Pests and Disease, National Institute of Forest Science) ;
  • Kim, Hyun-Sun (Division of Insect Pests and Disease, National Institute of Forest Science) ;
  • Seo, Sang-Tae (Division of Insect Pests and Disease, National Institute of Forest Science) ;
  • Koh, Sanghyun (Division of Insect Pests and Disease, National Institute of Forest Science)
  • 정종국 (국립산림과학원 산림병해충연구과) ;
  • 권혁준 (국립산림과학원 산림병해충연구과) ;
  • 김황 (국립산림과학원 산림병해충연구과) ;
  • 김현선 (국립산림과학원 산림병해충연구과) ;
  • 서상태 (국립산림과학원 산림병해충연구과) ;
  • 고상현 (국립산림과학원 산림병해충연구과)
  • Received : 2017.11.24
  • Accepted : 2018.01.30
  • Published : 2018.03.01
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Abstract

Walnuts are one of the most economically important fruit trees in forestry. In walnut orchards, however, studies examining damage by insect pests are limited. This study was conducted to investigate the rate of damage caused by Conogethes punctiferalis to walnut fruits and by Acrocercops transecta to walnut leaves. In 2017, the change of damage rate (caused by C. punctiferalis) to fruits were investigated in Buyeo. In addition, we counted fruits and leaves damaged by two lepidopteran species in Gimcheon, Buyeo, Yeongdong, and Hwaseong. Damaged fruits steadily increased in abundance with fruit growth in Buyeo, and the highest number of damaged fruits was documented in late summer. The rates of damage caused by C. punctiferalis to fruits in Buyeo, Gimcheon, and Hwaseong were 22.1%, 20.5%, and 11.7%, respectively. Additionally, the rates of damage caused by A. transecta to leaves in seedlings (58.5% on average) were significantly higher than to those in older trees (11.2% on average), irrespective of the study location. In conclusion, this study showed that C. punctiferalis and A. transecta were serious pests affecting walnut fruits and leaves, respectively. Therefore, management methods for these insect pests need to be developed.

호두는 경제적으로 중요한 유실수 중 하나이지만, 호두나무 포장 내에서 해충에 의한 피해 특성에 대한 정보는 매우 부족하다. 본 연구에서는 복숭아명나방과 굴피가는나방에 의한 호두열매와 잎의 피해를 조사하였다. 2017년 충남 부여군에 위치한 포장에서 복숭아명나방에 의한 호두열매 피해율의 변화를 조사하였다. 또한 김천, 부여, 영동 및 화성의 포장 내에서 2종의 나방에 의한 호두열매 및 잎의 피해율을 조사하였다. 부여 포장 내 호두열매의 피해율은 시간이 흐름에 따라 지속적으로 증가하였고, 피해율은 늦여름에 가장 높았다. 호두열매의 최종 피해율은 부여, 김천 및 화성에서 각각 22.1%, 20.5%, 11.7%로 조사되었다. 굴피가는나방에 의한 잎 피해는 성목의 신초 가지(평균 11.2%)에 비해 묘목의 신초 가지(평균 58.5%)에서 더 높은 것으로 조사되었다. 본 연구 결과, 호두나무 포장 내에서 복숭아명나방과 굴피가는나방에 의한 열매와 잎 피해가 심각한 것으로 확인되었으며, 향후 이들에 대한 방제기술 개발이 필요할 것으로 판단된다.

Keywords

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