Determining thresholds for bunch rot tolerance in wine and detection of unwanted fungal aromas

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Abstract

Grapevines are susceptible to several fungal diseases, including grey mould, caused by the fungus Botrytis cinerea. This rot attacks grape bunches close to harvest resulting in a loss of yield and grape quality. Different techniques for grey mould estimation were evaluated for their applicability and compared with visual estimations with the naked eye. Measuring the fungal sterol ergosterol allowed for the quantification of fungal biomass present in a grape sample in a space of two days. Detection of Botrytis antigens was a more rapid and specific method for detecting grey mould contamination in a matter of minutes.
Original languageEnglish
Place of PublicationWagga Wagga, NSW
PublisherWine Australia
Commissioning bodyAustralian Grape and Wine Authority trading as Wine Australia
Number of pages64
Publication statusPublished - 05 Aug 2021

Grant Number

  • CSU 1702-02

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