In this episode of Grown in Napa Valley, host Caleb Mosley sits down with Tracy Cleveland, Napa County's Agricultural Commissioner and Sealer of Weights and Measures, for a candid conversation about one of the more alarming pest events in recent memory. What began as a routine call from a neighboring county inspector turned into an urgent, coordinated response after glassy-winged sharpshooter was discovered on grapevine shipments sold through Costco stores across Northern California. Tracy walks Caleb through the timeline, which stretched across four separate shipments arriving from late April through late May, and describes what it looks like on the ground when inspectors mobilize to track down where infested plants may have landed. She also offers a practical reminder for growers: with harvest approaching, now is the time to contact the Agricultural Commissioner's office and schedule scale inspections before the season gets underway.
The conversation goes deeper than the incident itself, touching on Tracy's 23 years with the county, her early days as a seasonal glassy-winged sharpshooter inspector, and the protocols her team uses when evaluating incoming plant material. She reflects on how the European grapevine moth eradication shaped the county's approach to pest response and emphasizes that keeping up this kind of vigilance requires community participation, from reporting suspicious plants to being thoughtful about moving material between regions.
For Glass with a Grower, Caleb welcomes Jason Haas, second generation proprietor of Tablas Creek Vineyard in Paso Robles, fresh off his appearance at NVG's Organic Wine Growing Conference. Jason traces the story of Tablas Creek from its 1989 founding, a partnership between his father Robert Haas and the Perrin family of Château de Beaucastel, through its evolution into the first winery in the world to earn Regenerative Organic Certification. He unpacks each of the certification's three pillars and shares why the social welfare component turned out to be the most transformative, leading to changes in how the vineyard team communicates, shares knowledge, and takes ownership of the work. Despite a challenging wine market, Jason closes on an optimistic note: the tools to build a resilient, forward-looking operation are there for growers and producers willing to look for them.
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