Best Practice Management of Grapevine Viruses in Australia

The Wine Australia Strategic Plan 2020–2025 identifies pest and disease management as a priority research, development and adoption (RD&A) topic for the Australian wine sector.

The potential impact of viruses on grapevine productivity and grape quality has become increasingly recognised in Australian vineyards. Leafroll (caused by GLRaV1 and GLRaV3) and Shiraz Disease (caused by GVA) are rising in incidence and perceived as having economic impact in many grape growing regions. Effects include reduced vine vigour as well as reduced grape quality and yield from infected vines. 

Viruses can be introduced to an area primarily through infected plant stock but can also arrive via a number of different insect vectors and on contaminated equipment. Once introduced into an area, grapevine viruses tend to spread quickly.

Management of viruses in vineyards is providing a significant challenge for Australian grapegrowers and wine companies.

To assist to address this, Wine Australia is calling for proposals to develop a Best Management Practice guide for managing viruses in established vineyards and new vineyard plantings as well as in nurseries. The guide will contain the latest research information and can be used by grapegrowers and viticulturists to identify, monitor and manage viruses (and their vectors) in vineyards and restrict the spread of grapevine viruses.  

A draft National Standard for the Propagation and Supply of grapevines will also be developed in consultation with the sector to provide an agreed position on maintaining the supply of clean planting material. Alongside this, there will also be work to scope the key knowledge gaps around grapevine viruses and their impact in Australia to help guide future research investment. 

We are seeking Proposals to address the above questions. A Supplier may propose to form a consortium to undertake the full scope of the work or to specify delivery of only part of the full scope.

Detailed information on the background, project scope and proposal submission is contained in the Request for Proposal document.

Queries and submissions should be made to Dr Sharon Harvey at sharon.harvey@wineaustralia.com by the due date of 30 September 2020.


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