Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
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Effect of Drenching Soil with Benomyl, Propiconazole and Fluazinam on Incidence of Disappearing Root Rot of Ginseng

  • A.Monique Ziezold (Department of Environmental Biology, University of Guelph) ;
  • Robert Hall (Southern Crop Protection and Food Research Centre) ;
  • Richard D.Reeleder (Agriculture and Agri-Food Canada) ;
  • John T.A.Proctor (Department of Plant Agriculture, University of Guelph)
  • Published : 1998.12.01
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Abstract

Three fungicides, Orbit (propiconazole), Benlate (benomyl) and ASC-66835 (fluazinam), were tested as soil drenches to control disappearing root rot (DRR) of ginseng (Panax quinquefolius) in gardens artificially infested with Cylindrocarpon dsstrutans. The incidence of DRR was low (0∼3.5%) in uninfected plots and significantly higher in infested plots (2.6∼19.9%). Significant reductions in the incidence of DRR were observed in 1-year-old and 2-year-old gardens that were treated and assessed for disease in the same year Significant control was not obtained in 3-year-old gardens treated and as secede in the same year, or in 1-year-old or 2-year-old gardens assessed in the year following information. Disease incidence was significantly reduced by 49-77% by low and high rates of benomyl (45 and 1,250 mg a.1./L) and propiconazole (10 and 40 mg a.i./L) and by fluazinam at 150 mg a.i./L. These fungicides seem to be worthy of further investigation as soil drenches to control DRR of ginseng.

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