ROOTSTOCK 2024 Addresses Leafroll Virus and Red Blotch Disease

Samie Hartley, Napa Valley Register

he Napa Valley Grapegrowers recently hosted ROOTSTOCK 2024 to discuss two viral threats to vineyard health: Leafroll Virus and Red Blotch Disease.

Difficulties mitigating the spread of both Leafroll Virus and Red Blotch Disease are causing increased concern for growers due to the reductions of fruit quality and negative impact on vineyard profitability, according to a news release. With no cure available, the importance of early detection, innovative management practices, and cutting-edge research has never been higher. ROOTSTOCK, held at Napa Valley College on Nov. 19, featured expert-led sessions and panel discussions that dove into the latest research and mitigation strategies to address these viruses.

​"Preventing the spread of red leaf viruses requires a community effort. We must all work together," said NVG Director Justin Leigon of Piña Vineyard Management. "Local neighborhood groups have been building strong social networks to foster collaboration and share experiences, and the academic community has made significant progress in understanding how red blotch spreads and has identified effective mitigation methods, such as targeted vine removal."

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