Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Investigation of Viruliferous Insect Rate of Planthoppers Captured by Smart Sky Net Trap (SSNT) in Korea during 2015-2017

2015-2017년 국내 스마트 공중 포집기에 포획된 벼 주요 멸구류의 밀도 변동 및 보독충률 조사

  • Choi, Ji-Eun (Crop Protection Division, National Institute of Agricultural Sciences) ;
  • Kwak, Hae-Ryun (Crop Protection Division, National Institute of Agricultural Sciences) ;
  • Kim, Mi-Kyeong (Crop Protection Division, National Institute of Agricultural Sciences) ;
  • Jeong, Tae-Woo (Taean Agriculture Technology & Extension) ;
  • Seo, Jang-Kyun (Graduate School of International Agricultural Technology, Seoul National University) ;
  • Kim, Jeong-Soo (Department of Plant Medicine, Andong National University) ;
  • Choi, Hong-Soo (Crop Protection Division, National Institute of Agricultural Sciences)
  • 최지은 (농촌진흥청 국립농업과학원) ;
  • 곽해련 (농촌진흥청 국립농업과학원) ;
  • 김미경 (농촌진흥청 국립농업과학원) ;
  • 정태우 (태안군농업기술센터) ;
  • 서장균 (서울대학교 국제농업기술학과) ;
  • 김정수 (국립안동대학교 식물의학과) ;
  • 최홍수 (농촌진흥청 국립농업과학원)
  • Received : 2018.06.25
  • Accepted : 2018.08.20
  • Published : 2018.09.30
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Abstract

Major viruses infecting rice are transmitted by planthoppers such as small brown planthopper (SBPH), brown planthopper (BPH) and white-backed planthopper (WBPH). In this study, we investigated planthoppers captured during 2015 to 2017 by a smart sky net trap (SSNT) system installed in 40 areas in Korea, which is an automatic, rapid and real-time insect surveillance system. The average rates of captured migration plnathoppers was 27.5%, 17.2%, 15.3% and 10.9% in Chungcheongnamdo, Jeollanamdo, Jeollabukdo and Gyeonggido, orderly. The highly migrated month was July for SBPH, July to August for WBPH and August for BPH. To investigate the viruliferous rates of planthoppers of rice during 2015 to 2017, we performed RT-PCR using specific primers for each rice virus. RBSDV was detected from 0.4% in SBPH, while no viruses were detected in BPH and SBPH. Rice planthoppers exist all around in Asia. They can move long distance by wind from southern countries to Korea. Monitoring the migration of rice planthoppers and their viruliferous rates is important to prevent the outbreaks of rice virus diseases.

본 연구에서는 2015년-2017년 사이에 실시간 예찰 장비인 스마트 공중 포집기(SSNT)에 의해 포획된 멸구류 3종, 애멸구, 흰등멸구, 벼멸구의 비래 밀도를 분석하였으며, 각 멸구류가 전염하는 바이러스에 대하여 보독충률을 조사하였다. 중국과 가까운 충남, 전남, 전북과 경기도의 서해안 지역의 경우, 비래 밀도는 각각 27.5%, 17.2%, 15.3% 및 10.9%로 충남의 비래 밀도가 가장 높았고, 남해안 지역인 경남 지역의 비래 밀도는 15.9%였다. 그러나 경북과 강원도 지역의 동남부 지역에서 비래 밀도는 6.9%, 4.7%로 상대적으로 낮았으며, 충북의 내륙지역에서 비래 밀도는 1.6%로 가장 낮았다. 2015년부터 3년간 멸구류의 월별 대량 비래 시기는 애멸구는 7월, 흰등멸구와 벼멸구는 7-8월이었다. 2016년 이동성 멸구류 3종의 일별 대량 비래는 7월 중 하순에 7월 15일, 21일, 27일로 3회였으며, 2017년은 5월 28일, 6월 7일 및 7월 8일로 3회였다. 이 시기의 기후도는 중국과 필리핀 부근에서 형성된 고기압 사이로 우리나라를 향해 이동하는 저기압 골이 형성되었다. 2015-2017년 SSNT에 포획된 비래 멸구류의 바이러스 보독충률 조사는 RSV 등 5종의 벼 바이러스에 대하여 RT-PCR 유전자 진단을 하였다. 애멸구 1,185마리를 대상으로 RSV와 RBSCV를 검정한 결과 RSV는 검출되지 않았고, RBSDV는 0.4%의 보독충률을 보였다. 흰등멸구 898마리를 검정한 결과 SRBSDV를 보독 한 개체는 없었으며, 벼멸구 33마리를 대상으로 검정한 결과 RRSV와 RGSV를 보독한 개체는 없었다.

Keywords

References

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