As we enter the growing season, we're pleased to share that Sunridge Nurseries has officially begun our annual virus testing program, earlier than ever before. At Sunridge, we don't just meet industry standards - we set them.

Every year, we test all of our mother blocks at a 99% confidence level for a comprehensive range of grapevine viruses and other pathogens. This level of sampling and statistical confidence is far more rigorous than typical nursery testing protocols and is something we are very proud to share with our growers.

In 2025, this rigorous protocol resulted in more than 142,000 mothervines tested to help ensure the highest level of confidence in the cleanliness of the cuttings we harvest. For perspective, CDFA tested 4,312 vines statewide under the Grapevine Registration and Certification Program.

Following the latest recommendations from UC Davis, we have advanced our testing schedule to improve late-spring detection of Grapevine Red Blotch Virus, allowing for earlier identification and management of potential issues.

Our investment in nursery sanitation and plant health extends well beyond sampling. Sunridge operates its own accredited, state-of-the-art plant pathology laboratory, allowing us to perform advanced molecular diagnostics with rapid turnaround times. Combined with our isolated mother blocks, strict sanitation protocols, and multiple verification steps throughout propagation and production, this gives us an unmatched level of quality control from the first cutting to the finished vine.

Our growers know that clean plant material is the foundation of a productive vineyard, and protecting that foundation has always been our highest priority.

Thank you for your continued trust in Sunridge Nurseries, where quality begins at the source.

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