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    • Genetic diversity in Plasmopara viticola in South Africa 

      Koopman, Trevor A (Stellenbosch : Stellenbosch University, 2007-03)
      ENGLISH ABSTRACT: Downy mildew, caused by the obligate pathogen Plasmopara viticola, is a very destructive grapevine disease. The asexual phase (sporangia) of the pathogen has long been viewed as the life cycle stage ...