Agricultural officials in Northern California have issued an urgent warning after the invasive glassy-winged sharpshooter was discovered on grapevines and citrus plants sold at Costco stores. The insect carries Pierce's Disease, a bacterial infection that can devastate vineyards.
The affected plants, supplied by Burchell Nursery in Fresno County, were sold at Costco locations in 10 counties, including Sacramento, Napa and Solano, between April 21 and May 21. Inspectors have already destroyed 160 grapevines at Sacramento-area stores, but hundreds of potentially infested plants remain unaccounted for after being purchased by customers.
Sacramento County Agricultural Commissioner Chrisandra Flores urged residents to cooperate, stating that the pest also threatens almond, citrus and ornamental plants. Officials have issued a protocol for buyers: keep plants isolated in their original pots, seal them in double trash bags, and do not return or transport them.
Residents are instructed to contact the Sacramento County Agricultural Commissioner's Office immediately for inspection. Costco is working to notify affected members directly, and county officials have praised the retailer's cooperation.
