Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Seasonal Occurrence and Damage of Geometrid Moths with Particular Emphasis on Ascotis selenaria (Geometridae: Lepidoptera) in Citrus Orchards in Jeju, Korea

제주도 감귤원에서 네눈쑥가지나방을 중심으로 한 자나방류 해충 발생 및 피해

  • Choi, Kyung-San (Agricultural Research Center for Climate Change, National Institute of Horticultural & Herbal science, Rural Development Administration) ;
  • Park, Young-Mi (Jungbu Regional Office, National Plant Quarantine Service) ;
  • Kim, Dong-Hwan (Agricultural Research Center for Climate Change, National Institute of Horticultural & Herbal science, Rural Development Administration) ;
  • Kim, Dong-Soon (Majors in Plant Resource Sciences & Environment, Jeju National University)
  • 최경산 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 박영미 (국립식물검역원 중부지원) ;
  • 김동환 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 김동순 (제주대학교 생명자원과학대학 식물자원환경 전공)
  • Received : 2011.06.22
  • Accepted : 2011.07.21
  • Published : 2011.09.30
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Abstract

This study was conducted to evaluate Geometridae (Lepidoptera) species as pests and the damage they cause in citrus orchards in Jeju, Korea. Seven geometridae species occurred in citrus orchards: Ascotis selenaria, Ectropis excellens, Menophra senilis, Biston panterinaria, Ourapteryx nivea, Odontopera arida and Hypomecis punctinalis. Among them, A. selenaria was most abundant, followed by E. excellens and M. senilis. Most Geometridae larvae fed on citrus leaves, but A. selenaria larvae ate fruits and leaves. Fruit damage of Citrus unshiu appeared as gnawed scars caused by young larvae feeding on fruit surface. Fruit damage on Shiranui fruits appeared as a wide hole or deep scars caused by feeding by mature larvae (6th instar). Citrus leaves damage due to Geometridae larvae was high during May to June. Fruit damage started in late June as the spring-shoots of citrus hardened and increased sharply in late July. In the field experiment, fruit damage in the late season reached 4.2% in both 2008 and 2009 and reached 5.2% in 2010. In citrus orchards, A. selenaria larvae started to appear in mid-May and their populations peaked in mid June, late July, and early to mid-September. Adult males of A. selenaria had a maximum peak in mid-May, and two other peaks in early to late July and late August to early September. A. selenaria male adults were collected in a pheromone traps constantly throughout Jeju Island.

본 연구는 감귤에서 자나방류 해충의 종 및 피해를 구명하고자 수행되었다. 제주도 감귤에 발생한 자나방류 해충은 7종으로 네눈쑥가지나방(Ascotis selenaria), 줄고운가지나방(Ectropis excellens), 먹그림가지나방(Menophra senilis), 노랑띠알락가지나방(Biston panterinaria), 연노랑제비가지나방(Ourapteryx nivea), 남방갈고리가지나방(Odontopera arida), 네눈가지나방(Hypomecis punctinalis) 등 이었다. 이중 네눈쑥가지방의 유충 발생량이 가장 많았고, 줄고운가지나방과 먹그림가지나방 유충 순으로 발생량이 많았다. 대부분 자나방류 유충은 감귤 잎을 가해하였고, 네눈쑥가지나방 유충은 잎뿐만 아니라 과실도 가해하였다. 온주밀감(Citrus unshiu)의 과실피해는 어린 유충이 감귤 표면을 갉아먹은 흔적으로 나타났지만, 부지화(Shiranui)는 6령 유충에 의해 과실에 구멍이 생기거나 깊게 가해를 받았다. 온주밀감에서 자나방 유충으로 인한 잎 피해는 5~6월에 많았고, 과실 피해는 봄순 경화시기인 6월 하순경에 나타나기 시작하여 7월말까지 급증하였다. 실험 감귤원에서 감귤과실 피해율은 2008년과 2009년에는 4.2%였고, 2010년에는 5.2%였다. 네눈쑥가지나방 유충은 5월 중순경에 발생하여, 6월 중순, 7월 하순 및 9월 상중순에 발생 최성기를 보였다. 네눈쑥가지나방 수컷성충은 5월 중순에 최대 발생 최성기를 보였고, 7월 상순에서 하순 및 8월 하순부터 9월 상순에 발생피크를 보였다. 또한 제주 전역 농가 감귤원에 설치한 페로몬트랩에 네눈쑥가지나방 수컷 성충이 연간 지속적으로 유살되었다.

Keywords

References

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