GWSS/PD Nursery Program
Update on GWSS/Pierce’s Disease Nursery Programs
Over half of the state’s nurseries are in counties infested with the glassy-winged sharpshooter, and many ship to non-infested areas. Inspections, trapping, and treatments at nurseries, led by the Pierce’s Disease Control Program, are key to keeping GWSS from infesting new areas.
Nursery Regulatory Program: From Jan. 1 through July 31, 2023, there were 20,250 nursery stock shipments to non-infested areas of the state. Origin county inspectors found 13 GWSS egg masses, five nymphs, and five adults in outgoing nursery stock shipments.