Ecological Characteristics of Trioza ukogi (Shinji) (Homoptera: Triozidae) in Korea

한국산 오갈피나무이(매미목: 창나무이과)의 생태 특성

  • Won, Dae-Sung (Department of Forest Resources Protection, College of Forest and Environmental Sciences, Kangwon National University) ;
  • Park, Il-Kwon (Division of Forest Insect Pests and Disease, Korea Forest Research Institute) ;
  • Kim, Chul-Su (Division of Forest Insect Pests and Disease, Korea Forest Research Institute) ;
  • Shin, Sang-Chul (Division of Forest Insect Pests and Disease, Korea Forest Research Institute) ;
  • Kim, Jong-Kuk (Department of Forest Resources Protection, College of Forest and Environmental Sciences, Kangwon National University)
  • Received : 2007.10.11
  • Accepted : 2007.11.16
  • Published : 2007.12.31

Abstract

This study was investigate to ecological characteristic of Trioza ukogi (shinji) on the Acanthopanax senticosus for. inermis Harms during 2004-2005 in Korea. The sizes of Trioza ukogi (shinji) were $0.40{\pm}0.03mm$ in eggs, $0.36{\pm}0.03mm$ in 1st instar nymphs, $2.50{\pm}0.25mm$ in mature nymphs and $5.17{\pm}0.28mm$ in adults (to tip of folded wings), respectively. T. ukogi has two generations per year. First generation appeared from mid-July to late August with peak in early August. Second generation appeared from mid-September to mid-October with peak in late September. Overwintering adults move to host tree and mate from the early April to late May with peak in late April. Overwintering female laid on the new leaves and first generation prefers to lay on the seeds. The number of ovarian eggs was 5$57.5{\pm}23$.

본 연구는 2004년-2005년 민가시오갈피나무를 가해하는 오갈피나무이의 생태적 특성을 구명하기 위해 수행되었다. 알의 형태는 촛불모양이며 길이는 $0.40{\pm}0.03mm$이다. 약충은 5령기를 거치며 1령 약충의 체장은 $0.36{\pm}0.03mm$, 종령약충의 체장은 $2.50{\pm}0.25mm$이다. 1년에 2세대를 경과하며, 제 1세대 성충의 우화기간은 7월 중순부터 8윌 상순까지였고, 최성기는 7월 하순 이었다. 제 2세대 성충의 우화기간은 9월 중순부터 10월 상순까지였고, 최성기는 9월 하순 이었다. 월동한 성충은 4월 상순부터 5월 하순까지 월동처에서 오갈피나무의 잎이나 줄기로 이동하기 시작하였고, 이동 최성기는 4월 히순 이었다. 월동성충(♀)은 민가시오갈피나무의 개엽된 잎이나 새로 성장한 줄기를 선호하며, 제 1세대 성충은 종실이 형성되기 시작할 때 주로 종실사이에 산란하나 일부는 가지에도 산란하였다. 성충의 포란수는 $57.5{\pm}23$개 이었다.

Keywords

Acknowledgement

Supported by : 강원대학교 산림과학연구소

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