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Biological Characteristic of Obolodiplosis robiniae and Control Effects of Some Insecticides

아까시잎혹파리(Obolodiplosis robiniae)의 생물학적 특성 및 약제 살충 효과

  • Park, Ji-Doo (Division of Forest Insect Pests and Diseases, Korea Forest Research Institute) ;
  • Shin, Sang-Chul (Division of Forest Insect Pests and Diseases, Korea Forest Research Institute) ;
  • Kim, Chul-Su (Forest Human Resources Development Institute) ;
  • Jeon, Mun-Jang (Department of Forest Resources, College of Life and Environment, Daegu University) ;
  • Park, Il-Kwon (Division of Forest Insect Pests and Diseases, Korea Forest Research Institute)
  • 박지두 (국립산림과학원 산림병해충연구과) ;
  • 신상철 (국립산림과학원 산림병해충연구과) ;
  • 김철수 (산림청 산림인력개발원) ;
  • 전문장 (대구대학교 생명환경대학 산림자원학과) ;
  • 박일권 (국립산림과학원 산림병해충연구과)
  • Published : 2009.09.30

Abstract

Biological Characteristic of Obolodiplosis robiniae and insecticidal activity of some insecticides against larvae of O. robiniae were investigated. Egg was in oval shape, and its color was light orange and became red when close to hatch. Length of the major axis and the minor axis of egg was 0.4 mm and 0.1 mm, respectively. Larval color was milky and size was 2.6 mm. Pupa was deep brown and its size was about 3.2 mm. Wing and abdomen of adult was black and reddish, respectively. Size of female adult was about 3.3 mm, and larger than male adult. Number of eggs in the ovary was $192.3{\pm}50.7$. First emergence was from late April to late May, and second from late May to late June. Third emergence was from late June to late July. Newly emerged adult escaped from soil, and second and third emerged adult escaped directly from gall of Robinia pseudoacacia leaf. Egg parasitoid was identified as Platygaster robiniae and parasite rate was 51.6%. Among test insecticides, imidacloprid 10% WP and thiacoprid 10% FL showed very strong insecticidal activity against larvae of O. robiniae at 48h later after treatment.

아까시잎혹파리의 형태, 생태적 특성 및 몇 가지 살충제의 살충활성을 조사하였다. 알은 길쭉한 타원형으로 연한 노란색을 띄다가 부화할 시기가 가까울수록 붉은색이 되며, 장경은 0.4 mm, 단경은 0.1 mm 이었다 유충은 유백색을 띠고, 평균 크기는 2.6 mm 이었다. 번데기는 붉은 기운을 띈 갈색이며 체장은 3.2 mm 내외이었다. 성충의 날개는 검고 배 부분은 붉은색을 띠었다. 암컷의 체장은 3.3 mm 내외로 수컷보다 컸다. 1화기 성충은 땅속에서 우화하여 아까시 나무 어린 잎에 산란을 하고, 2화기 성충부터는 아까시 나무 잎의 벌레 혹에서 바로 우화한다. 암컷 성충의 포란수는 $192.3{\pm}50.7$개 이었다. 1화기는 4월말부터 5월말, 2화기는 5월 말부터 6월 말까지로 약 1개월간 이었고 최성기는 6월 상순이었다. 3화기는 6월 말부터 7월 말까지였다. 알기생봉인 Platygaster robiniae가 동정되었으며, 기생율은 51.6%에 이르렀다. 살충활성을 검정한 결과, 침투이행성 약제인 이미다클로로프리드 10% 수화제와 치아클로프리드 10% 액상수화제가 높은 살충활성을 나타내었으며, 특히 치아클로프리드는 꿀벌에 대한 독성이 낮아 유효한 약제로 판단되었다.

Keywords

References

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