The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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The Best Spray Timing for the Control of the Bacterial Shot Hole with Bordeaux mixture (6-6) after Wintering in the Peach Orchard

복숭아 과원에서 월동 후 세균구멍병 방제를 위한 보르도액 최적 살포시기

  • Kim, San Yeong (Cheongdo Peach Experiment Station, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Park, Won Heum (Cheongdo Peach Experiment Station, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Son, Hee Jung (Cheongdo Peach Experiment Station, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Lee, Suk Hee (Cheongdo Peach Experiment Station, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Song, Young Woon (Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Park, So Deuk (Gyeongsangbuk-do Agricultural Research & Extension Services)
  • 김산영 (경상북도농업기술원 청도복숭아시험장) ;
  • 박원흠 (경상북도농업기술원 청도복숭아시험장) ;
  • 손희정 (경상북도농업기술원 청도복숭아시험장) ;
  • 이숙희 (경상북도농업기술원 청도복숭아시험장) ;
  • 송영운 (경상북도농업기술원) ;
  • 박소득 (경상북도농업기술원)
  • Received : 2015.01.05
  • Accepted : 2015.06.19
  • Published : 2015.06.30
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Abstract

This experiment was carried out to investigate the best spray timing for the control of the bacterial shot hole with Bordeaux mixture (6-6) after wintering in the peach orchard. We sprayed Bordeaux mixture (6-6) on 'Mibaekdo', 'Yumyeong' and 'Cheonhong' of peach verities from late-March to mid-April in 2001, 2002 and 2014, and examined how much bacterial shot hole and chemical injure occurred. The infection rate of bacterial shot hole according to spray time was 10.2 to 11.7% at leaves, and 1.7 to 2.2% at fruits in 2002. And Efficacy of the Bordeaux mixture treatment for control of bacterial shot hole at full blooming time 21.2 to 30.4% at leaves, 1.7 to 4.4% at fruits in 2014. The chemical injure occurred slightly for one week hence. The fruit bearing rate was 20.7 to 29.8% at 'Mibaekdo', and 35.4 to 61.9% at 'Yumyeong' peach trees. When the spray at the time of blooming period by bordeaux mixture was investigated the control effect of bacterial shot hole disease. The infected leaves was better than 21 to 25% twice the quantity of finished products and bordeaux self-preparation about 28 to 30% base quantity of finished products, also the control efficacy was higher in infected fruits trends in bordeaux self-preparation method and twice the quantity of finished products.

복숭아 과원에서 월동 후에 세균구멍병 방제를 위한 보르도액(6-6)의 최적 살포시기를 구명하기 위해 이 연구를 수행하였다. 복숭아 미백도와 유명 및 천홍 품종에서 2001년과 2002년, 2014년 3월 하순부터 4월 중순까지 보르도액(6-6)을 살포한 후 복숭아 세균구멍병 발병 양상과 약해 정도를 조사하였다. 2002년에 보르도액 살포시기별 세균구멍병 이병률의 경우 잎에서 10.2~11.7%, 과실에서 1.7~2.2% 정도였으며, 2014년에 보르도액 종류별 세균구멍병 이병률은 잎에서 21.2~30.4%, 과실에서 1.7~4.4%였다. 약해는 보르도액 처리 후 1주일 경에 미약하게 발생하였다. 착과율은 미백도에서 20.7~29.8% 였으며, 유명에서는 35.4~61.9% 정도였다. 개화기에 자가 조제한 보르도액을 살포했을 때 복숭아 세균구멍병에 효과가 있는 것으로 조사되었으며, 보르도액 자가 조제구와 완제품 배량 처리구의 경우 21~25% 정도의 이병엽률로 완제품 기준량의 28~30% 정도에 비해 방제효과가 높았다.

Keywords

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