New powdery mildew app

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Visual assessment of powdery mildew – the grape and wine sector’s most costly disease will be easier with a new, free smart-phone app (PMapp) developed by University of Adelaide researchers and collaborators. PMapp is designed to assist grapegrowers and wineries make informed decisions about the quality and price of grapes. Wine Australia has helped fund the development as part of a wider research project to establish objective measures for quantifying powdery mildew. A reference group of viticulturists, wineries, independent assessors and researchers has been actively consulted throughout the project.

Growers can make a quick visual assessment of the severity of powdery mildew.

PMapp has an impressive list of features:

  • A pictorial disease ‘key’ showing different levels of powdery mildew infection to assist the user to accurately score the level of disease on bunches;
  • A calibration guide, where the user can test the accuracy of visually scoring powdery mildew on bunches;
  • A very easy to use scoring tool that tallies both the incidence and severity of powdery mildew in the field to more accurately predict the likely impact on wine.
  • The assessment result can be emailed in XML or .csv format

A website to support the app is currently being developed and is scheduled for release at the end of January. PMapp is now available for download on Apple’s App Store or Google Play. Watch the video below to remind yourself what powdery looks like

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