Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Evaluation of Biological Control of Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) using Diglyphus isaea (Walker) (Hymenoptera: Eulophidae) in Three Seasonal Culture Types of Tomato Greenhouse

굴파리좀벌(Diglyphus isaea)을 이용한 시설재배 토마토 작형별 아메리카잎굴파리(Liriomyza trifolii) 밀도억제 효과

  • Kim, Jeong-Hwan (Applied Entomology Division, National Institute of Agricultural Science & Technology, RDA) ;
  • Byoun, Young-Woong (Applied Entomology Division, National Institute of Agricultural Science & Technology, RDA) ;
  • Lee, Gwan-Seok (Applied Entomology Division, National Institute of Agricultural Science & Technology, RDA) ;
  • Kim, Hwang-Yong (Applied Entomology Division, National Institute of Agricultural Science & Technology, RDA)
  • 김정환 (농업과학기술원 농업해충과) ;
  • 변영웅 (농업과학기술원 농업해충과) ;
  • 이관석 (농업과학기술원 농업해충과) ;
  • 김황용 (농업과학기술원 농업해충과)
  • Published : 2007.04.30
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Abstract

Biological control of Liriomyza trifolii (Burgess) using Diglyphus isaea (Walker) has been evaluated in tomato greenhouse, for three seasonal culture types: spring type (March-July), summer type (June-October) and autumn type (July-December). For spring type, totally 5.8 $individuals/m^2$ of D. isaea has been released at six times from late April, when the density of L. trifolii was about 1.0 individuals/plant. Corrected mortality of Liriomyza trifolii caused by parasitoids was 97.6% at early July, and the proportion of D. isaea was 88.9% of all parasitoids collected in the greenhouse. In the case of summer type, totally 1.8 $individuals/m^2$ of D. isaea has been released at five times from early July, when the density of 1. trifolii was about 0.4 individuals/plant. Corrected mortality of L. trifolii caused by parasitoids was 84.4% during the whole season, but the proportion of D. isaea was very low (only 13.8%). Immigrating parasitoids such as Chrysocharis penthus were synchronized to control the leafminer in the greenhouse. For autumn type, totally 2.7$individuals/m^2$ of D. isaea has been released at four times from mid September, when the density of L. trifolii was about 0.7 individuals/plant. Corrected mortality of f. trifolii caused by parasitoids was 85.7% at mid December, and the proportion of the D. isaea was 83.4%.

서로 다른 세 가지 시설재배 토마토 포장에서 아메리카잎굴파리의 기생천적인 굴파리좀벌의 인위적방사에 의한 밀도억제 효과를 조사하였다. 봄 작형(3-7월)은 4월 하순부터 아메리카잎굴파리 유충 밀도가 주당 1마리일 때부터 굴파리좀벌을 $m^2$당 0.5-1.7마리씩 6회(총 5.8 마리$/m^2$) 방사한 결과, 조사 시작기인 5월 17일에 비해 조사 종료기인 7월 6일의 아메리카잎굴파리 방제가는 97.6%였다. 방사종인 굴파리좀벌의 점유율은 88.9%로 우점 하였다. 여름 작형(6-10월)은 7월 상순부터 아메리카잎굴파리 유충 밀도가 주당 0.4마리일 때부터 굴파리좀벌을 $m^2$당 0.3-0.4마리씩 5회(총 1.8 마리$/m^2$) 방사한 결과, 천적의 효과가 나타나는 7원 22일부터 11월 3일까지의 아메리카잎굴파리 유충 평균 치사율은 84.4%였다. 그러나 방사종인 굴파리좀벌의 점유율은 13.8%로 매우 낮은 반면, 나머지 86.2%는 외부에서 유입된 자생 잎굴파리 기생봉들이 점유하고 있었으며, 그 가운데 굴파리민좀벌(Chrysocharis penthus)이 58.5%로 가장 많이 발생하였다. 가을 작형(7-12월)은 9월 중순부터 아메리카잎굴파리 유충 밀도가 주당 0.7마리일 때부터 굴파리좀벌을 $m^2$당 0.4-1.3마리씩 4회(총 2.7마리$/m^2$방사한 결과, 조사시작기 인 9월 22일 대배 조사 종료기인 12월 16일의 아메리카잎굴파리 방제가는 85.7%였다. 방사종인 굴파리좀벌의 점유율은 83.4%로 우점 하였다.

Keywords

References

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