3 articles · Updated · The Santa Rosa Press Democrat · Jun 10
Summary
Napa has recovered 101 of 220 Burchell grapevines sold through Costco, while Sonoma has tracked down all but about 100 of 634 as both counties intensify disposal and tracing efforts.
Four of five Napa egg-cluster samples from Costco vines tested positive for glassy-winged sharpshooter, and Sonoma found one vine infested with nymphs, reinforcing fears of spread into wine country.
CDFA now estimates roughly 13,000 shipped vines were affected across 24 counties, though Napa officials say shoppers may have carried plants into another 15 or 16 counties beyond that footprint.
Burchell Nursery is accused of shipping exposed vines without the required hold notice; Fresno County has placed it under shipping restrictions, and violations can bring fines of up to $2,500 per shipment.