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Comparative Analysis of the Biological Characteristics of Ephedrus plagiator (Nees) and Aphidius ervi Haliday according to Different Aphid Hosts

기주에 따른 목화검정진디벌(Ephedrus plagiator (Nees))과 진디벌(Aphidius ervi Haliday)의 생물학적 특성 비교

  • Ji, Chang Woo (Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration (RDA)) ;
  • Kang, Eun Jin (Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration (RDA)) ;
  • Byeon, Young-Woong (Director General for Planning and Coordination, RDA) ;
  • Kim, Jeong-Hwan (Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration (RDA)) ;
  • Choi, Byeong Ryeol (Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration (RDA))
  • 지창우 (농촌진흥청 국립농업과학원 작물보호과) ;
  • 강은진 (농촌진흥청 국립농업과학원 작물보호과) ;
  • 변영웅 (농촌진흥청 기획조정관실) ;
  • 김정환 (농촌진흥청 국립농업과학원 작물보호과) ;
  • 최병렬 (농촌진흥청 국립농업과학원 작물보호과)
  • Received : 2014.10.13
  • Accepted : 2014.11.07
  • Published : 2014.12.01

Abstract

To investigate the biological control of Aulacorthum solani, a comparative analysis was carried out using an indigenous natural enemy, Ephedrus plagiator, and an exotic parasitoid, Aphidius ervi. Lifespan, spawning periods, number of mummies, number of offspring, and developmental periods of the two parasitoids on Aulacorthum solani and Acyrthosiphon pisum were studied at 15, 20, 25, and $30^{\circ}C$ with a photoperiod 16 h (L): 8 h (D). The lifespan of E. plagiator (5.3 days) was relatively higher than that of A. ervi (2.3 days) when these parasitoids were reared on A. solani at $15^{\circ}C$. Similarly, the spawning period of E. plagiator (5.3 days) was longer than that of A. ervi (2.2 days). When the two aphid parasitoids were provisioned with A. solani, the numbers of E. plagiator mummies at 15, 20, 25, and $30^{\circ}C$ were 71.5, 41, 15.7, and 7.7, respectively, whereas at the same temperatures, the numbers of A. ervi mummies were 22.1 16.3, 6.2, and 0.4, respectively. In contrast, when provision with A. pisum, the numbers of E. plagiator mummies at 15, 20, 25, and $30^{\circ}C$ were 70.3, 69.8, 34.3, and 8.4, whereas the numbers of A. ervi mummies were 93.4, 71.2, 34.8, and 14.5, respectively. The numbers of E. plagiator offspring emerging at 15, 20, 25, and $30^{\circ}C$ were 42.1, 36, 11.6, and 0, whereas the numbers of A. ervi offspring emerging were relatively lower at 19.6, 13.5, 3.7, and 0.1, respectively. By comparing these results, it can be concluded that E. plagiator is a more efficient parasitoid of A. solani, whereas A. ervi is more efficient on A. pisum.

싸리수염진딧물(Aulacorthum solani) 방제를 위해 기생성 천적으로 국내에서 선발한 목화검정진디벌(Ephedrus plagiator)과 외국에서 판매되고 있는 진디벌(Aphidius ervi)을 비교 조사하였다. 성충 수명과 산란 기간, 머미수, 우화충수 등에 대한 우열성을 싸리수염진딧물과 완두수염진딧물(Acyrthosiphon pisum)을 대상으로 온도 15, 20, 25, $30^{\circ}C$와 광주기 16(L) : 8(D)의 조건에서 조사하였다. 성충 수명은 $15^{\circ}C$에서 목화검정진디벌이 싸리수염진딧물에서 5.9일로 진디벌 3.6일에 비해 2.3일 길었다. 산란 기간도 $15^{\circ}C$의 싸리수염진딧물에서 목화검정진디벌이 5.3일인 반면, 진디벌은 2.2일로 상대적으로 짧았다. 싸리수염진딧물에서 목화검정진디벌과 진디벌의 머미수는 목화검정진디벌이 15, 20, 25, $30^{\circ}C$에서 각각 71.5, 41.0, 15.7, 7.7개로 진디벌의 22.1 16.3 6.2, 0.4 보다 많이 기생하는 것으로 나타났다. 반면에 완두수염진딧물에서 목화검정진디벌의 머미수는 70.3, 69.8, 34.3, 8.4개로 93.4, 71.2, 34.8, 14.5로 조사된 진디벌의 머미수보다 낮았다. 싸리수염진딧물에서 목화검정진디벌의 우화충수는 42.1, 36, 11.6, 0로 나타나 $30^{\circ}C$의 높은 온도에서는 우화하지 않은 것을 알 수 있었다. 진디벌의 경우에는 우화 개체수가 각 온도에서 19.6, 13.5, 3.7, 0.1로 나타나 목화검정진디벌에 비해 상대적으로 적게 우화한 것으로 조사되었다. 두 종의 비교결과, 싸리수염진딧물에서는 목화검정진디벌이, 완두수염진딧물에서는 진디벌이 우수한 것으로 조사되었다.

Keywords

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