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Assessing and managing disease-affected fruit in the vineyard: the Australian experience

conference contribution
posted on 2023-05-23, 17:34 authored by Katherine EvansKatherine Evans
The unusually wet season across south-eastern Australia in 2010–2011 saw grapegrowers exhausted after endless hours of spraying, often in vain, to control the dreaded trifecta of downy mildew, powdery mildew and botrytis bunch rot (botrytis). Mildew infection during flowering and fruit set damaged grape berries providing infection sites for the opportunistic ‘wound’ fungi that cause bunch rot. However, the interaction between the diseases was not always detrimental. There were reports that defoliation caused by downy mildew increased air circulation in the canopy which, in turn, reduced the severity of bunch rot. Nevertheless, the pressure on vineyard managers to act in controlling these diseases was relentless, even when certain actions, with hindsight, proved fruitless.

History

Publication title

Proceedings ASVO Seminar - Making the Best Out of Difficult Vintages: Managing Sub-optimal Fruit in the Winery

Editors

Paul R Petrie

Pagination

11-19

ISBN

0 9775256 9 4

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Australian Society of Viticulture and Oenology

Place of publication

Adelaide, South Australia

Event title

Making the Best Out of Difficult Vintages: Managing Sub-optimal Fruit in the Winery

Event Venue

Adelaide, South Australia

Date of Event (Start Date)

2011-11-22

Date of Event (End Date)

2011-11-22

Repository Status

  • Restricted

Socio-economic Objectives

Wine grapes

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