Urgent consumer alert issued for grapevines purchased at Northern California Costco stores

The El Dorado County Agricultural Commissioner is advising residents to take precautions after the invasive glassy-winged sharpshooter (GWSS) was found on grapevines delivered to Costco stores throughout California. Residents who purchased grapevines or other plants at Costco between April 21 and May 26 should: • For all plants: Contact the El Dorado County Agriculture Department at 530-621-5520 or email eldcag@edcgov.us immediately to schedule pick-up of grapevines and/or inspection of other plants and receive guidance on how to prevent further spread and infestation of the glassy-winged sharpshooter. • For grapevines: Place two garbage bags over plants and secure them tightly. • For other plants: Use the contact information above to schedule Agriculture Department inspection. • Do not attempt to return, transport or relocate plants. • Do not place plants in the trash or compost bin. "El Dorado County has been fighting a costly eradication effort in El Dorado Hills since October 2024 against the glassy-winged sharpshooter, which poses an immediate and serious threat to El Dorado County vineyards. This pest transmits the bacterium Xylella fastidiosa, which causes the deadly Pierce's disease in grapevines," said LeeAnne Mila, El Dorado County agricultural commissioner. "To combat this new potential pathway of spreading this invasive pest, we are asking for community-wide cooperation to help limit this risk. If you recently purchased grapevines or other plants at any Costco, contact the Agriculture Department so we can safely dispose of vines and inspect other plants." In addition to jeopardizing California vineyards, glassy-winged sharpshooters can damage other agricultural commodities and plants in home landscapes. Members who purchased grapevines from a Northern California Costco should receive emails regarding refunds for their purchase. The glassy-winged sharpshooter is a highly mobile pest and immediate action needs to be taken. Containment of this pest is vital to protecting the agricultural resources of not only El Dorado County but all of California.