Napa Valley Grapegrowers Unite to Tackle Red Blotch Virus at Beckstoffer Vineyards Event

Grapegrowers from across Napa Valley will gather on April 8 at Beckstoffer Vineyards in Rutherford, California, for a field day focused on managing grapevine red blotch virus. The event, organized by the Napa Valley Grapegrowers (NVG), aims to foster dialogue and collaboration among vineyard owners and managers as they confront one of the region’s most persistent threats to wine grape production.

Red blotch virus has become a major concern for growers in Napa Valley and other winegrowing regions. The disease delays grape ripening, reduces fruit quality, and can significantly impact the economic viability of vineyards. With no definitive cure or widely accepted management strategy available, growers face difficult decisions about whether to remove infected vines, replant entire blocks, or invest in long-term solutions amid ongoing uncertainty.

The upcoming Grower Field Day will highlight a case study involving neighboring vineyards that have chosen to work together in monitoring and responding to red blotch. By sharing observations and coordinating management actions across property lines, these growers are attempting to address the disease more effectively than they could alone. The event will provide an opportunity for attendees to learn from this collaborative approach and discuss how similar strategies might be applied elsewhere in the valley.

NVG has made red blotch a central focus of its educational efforts in recent years. In 2024, the organization hosted a ROOTSTOCK conference dedicated to the virus, bringing together researchers and industry professionals to discuss new findings and practical challenges related to vineyard management. These initiatives reflect a growing recognition that red blotch is not an isolated problem but one that requires coordinated action across the community.

Caleb Mosley, Executive Director of NVG, emphasized the importance of collective effort in addressing red blotch. “Red blotch is not a challenge that will be solved by any one vineyard or organization,” Mosley said. “It requires an entire community working together. Growers sharing information, neighbors coordinating decisions, and industry supporting scientific research desperately needed to better understand the virus. This level of collaboration is essential to protecting the long-term health of our vineyards.”

The stakes are high for Napa Valley’s wine industry, which relies on consistent fruit quality and healthy vines for its reputation and economic success. Red blotch can reduce yields and alter grape composition, affecting both short-term profitability and long-term sustainability. As more growers recognize the need for shared solutions, events like the upcoming field day are becoming increasingly important forums for exchanging knowledge and building partnerships.

NVG’s decision to host the event at Beckstoffer Vineyards underscores the significance of collaborative management in one of Napa’s most renowned growing areas. By focusing on real-world examples of neighbor-to-neighbor cooperation, organizers hope to inspire other growers throughout the region to initiate similar conversations and joint efforts.

The field day is expected to draw vineyard owners, managers, researchers, and industry representatives from across Napa Valley. Attendees will have the chance to observe collaborative management practices firsthand and participate in discussions about future strategies for combating red blotch.

As red blotch continues to challenge vineyards with no clear solution in sight, NVG’s emphasis on education and cooperation reflects a broader shift toward community-based responses within the wine industry. By bringing stakeholders together to share experiences and coordinate actions, Napa Valley grapegrowers are working to safeguard their vineyards against one of their most complex adversaries.