Faba bean (Vicia faba L.) agronomy update — chocolate spot (Botrytis fabae) management in faba beans at Kojonup in 2021

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Grains Research and Development Corporation (GRDC)


  • Foliar fungicide application on Western Australian faba bean crops can be safely delayed until flowering begins, even if chocolate spot is present at low levels earlier in the season.
  • An alert system using in-crop monitors is being developed that might provide increased confidence in making fungicide application decisions – by supporting the decision not to spray.
  • In high rainfall/risk areas the ‘alert’ system could need modification to account for extended periods of very high humidity and ‘discounting’ temperature.
  • PBA Bendoc is rated ‘S’ for chocolate spot and might not be the best variety in high rainfall/high humidity regions. In these circumstances PBA Amberley would be a better choice.


Agronomy and Crop Sciences | Biosecurity


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