Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Control Effect of Insecticides against Chilo suppressalis Walker of Native Miscanthus in Korea

국내 자생 억새를 가해하는 이화명나방의 방제 처리 효과

  • Yu, Gyeong-Dan (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Lee, Ji-Eun (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Jang, Yun-Hui (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Moon, Youn-Ho (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Cha, Young-Lok (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Song, Yeon-Sang (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Lee, Kyeong-Bo (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA)
  • 유경단 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 이지은 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 장윤희 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 문윤호 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 차영록 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 송연상 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 이경보 (농촌진흥청 국립식량과학원 바이오에너지작물연구소)
  • Received : 2016.10.29
  • Accepted : 2016.12.07
  • Published : 2016.12.31
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Abstract

Miscanthus are perennial rhizomatous grasses and considered as an ideal cellulosic bioenergy crop. Recently, it was reported that Miscanthus was damaged by the larvae of rice stem borer, Chilo suppressalis Walker, one of the most destructive pests of rice in Korea since the 1960s. This study was thus conducted to evaluate the insecticidal effects against rice stem borer in the Miscanthus cultivation fields for two years. The experiment consisted of four chemical agent plots, one environment-friendly agent plot, and untreated plot. Untreated plot showed significantly high damage of 50%, while Buprofezin Tebufenozide and Carbosulfan Methoxyfenozide treatment plots showed low damage rate of 2% with low larvae density of 1 and $2.3larvae\;m^{-2}$, respectively. Damage rates of Tebufenozide, ChlorantraniliproleIndoxacarb, and environment-friendly agent(MatrineWood vinegar solution) were 15, 26, and 18%, respectively, which were lower than that of untreated plot but higher than those of Buprofezin Tebufenozide and Carbosulfan Methoxyfenozide. In conclusion, rice insecticides were effective against rice stem borer in Miscanthus field. In particular, the treatments with Buprofezin Tebufenozide and Carbosulfan Methoxyfenozide showed excellent control effects with control value of 93.3 and 95.2. However, further studies with different types of insecticides should be carried out for the selection of insecticides with more effective control of rice stem borer.

본 연구는 바이오에너지작물인 억새 포장에 발생하는 이화명나방의 효과적 방제를 위한 기초자료로 활용하기 위해 전남 화순의 억새 포장에서 2014년-2015년 2년 동안 이화명나방의 월동 유충 밀도와 억새의 생육, 벼용 살충제의 이화명나방 방제 효과를 평가하고자 수행되었다. 억새 포장에 발생하는 이화명나방의 월동 유충 밀도는 2014년보다 2015년에 감소하는 경향을 보였으며 지역별로는 2014년 무안 0%, 화순 6%, 산청 5%, 2015년 무안 1%, 화순 3%, 산청 3%로 유충밀도가 다르게 나타났다. 월동 유충의 밀도가 높게 나타난 화순 포장의 억새는 1화기 및 2화기 유충 발생 시기인 6-11월까지 초장, 줄기 굵기, 엽수 등에서 생육 저하 등의 피해가 나타나지 않아 유충이 속대를 가해하는 것이 억새 생육에는 큰 피해를 주지 않는 것으로 확인되었고 속대 가해 후 강풍으로 인해 줄기 부러짐 피해가 발생한 것으로 사료된다. 벼용 살충제의 처리는 억새 포장발생 이화명나방의 밀도 감소에도 효과가 있었으며 그 중 뷰프로페진 테부페노자이드수화제와 카보설판 메톡시페노자이드수화제의 방제가가 93.3, 95.2로 이화명나방 방제효과가 우수함을 확인하였다.

Keywords

References

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