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Glassy-winged sharpshooter eggs found in Napa County

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Staff from the Napa County Agricultural Commissioner’s Office found glassy-winged sharpshooter eggs last week while inspecting a shipment of plants to a local plant retailer.

The sharpshooter has the potential to be a devastating pest to wine grapes in Napa County, but while it’s infested Southern California counties for years it has never taken root in Napa.

Last Thursday, inspectors found the egg masses on two crape myrtle trees, which had been shipped to Napa County from a San Diego County nursery, according to a news release from Napa County.

The California Department of Food and Agriculture(CDFA) tested the egg masses and determined they had the potential to hatch. All of the crape myrtle trees and other plants shipped by the San Diego County nursery were returned Friday, and the county also notified other Bay Area and Northern California counties of the situation, the news release said.

Glassy-winged sharpshooter egg masses were found in three other stores in Sacramento County, according to the news release. The CDFA and the San Diego County Ag Commissioner’s Office will investigate how the shipments were able to be sent, which is a breakdown in protocols, and the nursery may lose its ability to ship plants and be subjected to fines or other penalties.

“We have been successful in keeping (the pest) out of Napa County for 14 years,” Ag Commissioner Greg Clark said in the news release. “This recent discovery of viable (sharpshooter) egg masses, however, points to the continued importance of our exclusion and detection programs.”

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