06/05/2026
Did you recently purchase plants from Costco?
Plants sold at Costco locations throughout California may have been infested with Glassy-Winged Sharpshooter (GWSS), an invasive pest that can spread Pierce’s Disease—a bacterial infection that can be devastating to grapevines and other agricultural crops.
In this video, FWC Board Member Roy Onetto from Foley Family Wine Company and FWC Vice President Lise Asimont, owner of Dot Wine, share why this issue matters and what consumers can do to help protect California agriculture.
If Costco contacted you regarding a plant purchase, please contact your County Agricultural Commissioner for guidance. We also encourage everyone to familiarize themselves with Glassy-Winged Sharpshooter and remain vigilant for information and alerts in your community.
Protecting California’s vineyards starts with awareness. Please help us spread the word.
Family Winemakers
California Wine
Glassy Winged Sharpshooter
Pierces Disease
Winegrapes
California Agriculture
Protect California Wine
Costco Plants
Do you know someone’s who purchased plants at Costco recently? If so, please call them to check their purchase wasn’t infected.