A glassy-winged sharpshooter was confirmed on a grape plant from Redding Costco on June 5, 2026. - The pest was found on a plant purchased between April 21 and May 21, 2026.
- Only 20% of shipped plants have been accounted for; residents are urged to contact authorities. - The insect spreads Pierce's Disease, which kills grapevines and threatens vineyards.
Shasta County officials are placing monitoring traps and asking for public cooperation to prevent spread.