Source: California Department of Food and Agriculture
The European grapevine moths (EGVM) are emerging after a long winter and are increasingly turning up in traps that have been set throughout California. These detections have resulted in the addition of portions of Fresno and Mendocino counties to the EGVM quarantine, and they have also expanded existing quarantine areas in Napa, Sonoma and Solano counties.

"We have set an array of more than 40,000 traps statewide to determine exactly where the infestations exist," said CDFA Secretary A.G. Kawamura. "Detecting the pest is an important first step toward controlling it, and quarantines are the next step in the process. These regulations allow us to protect surrounding uninfested areas by preventing movement of the insects on crops, harvesting equipment and related articles."

Original press release