Scientific Opinion: Improving the Definition of Grape Phylloxera Biotypes and Standardizing Biotype Screening Protocols

• Astrid Forneck ^[1] ; Kevin S. Powell ^[2] ; M. Andrew Walker ^[3]
  1. [1] University of Natural Resources and Life Sciences

     University of Natural Resources and Life Sciences

     Innere Stadt, Austria

     
  2. [2] Department of Economic Development, Jobs, Transport & Resources, Biosciences Research Division, Victoria, Australia
  3. [3] University of California, Davis, Department of Viticulture and Enology

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• Localización: American Journal of Enology and Viticulture, ISSN 0002-9254, Vol. 67, Nº 4, 2016, págs. 371-376
• Idioma: inglés
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• Resumen

  • Grape phylloxera biotypes are defined by their specific performance on, or preference for, a particular host (e.g., feeding on a particular rootstock). Numerous studies have phenotyped phylloxera biotypes, particularly with regard to their performance on various hosts, but the results are difficult to compare because there is neither a homogenous nomenclature nor a standardized protocol for phenotyping. To improve communication within the scientific community, we offer a simplified phylloxera biotype classification to allow clear data interpretation and effective communication. We also introduce the standard techniques employed for phylloxera phenotyping and discuss their advantages and disadvantages.