Distribution
Goldspotted Oak Borer (GSOB) infestations have spread throughout San Diego County since it's discovery in 2008. Satellite GSOB infestations were identified in Riverside County (2012), Orange County (2014) and Los Angeles County (2015). A second satellite infestation was discovered in south east Orange County in 2017. All of these satellite infestations are believed to have occurred due to people transporting GSOB-infested firewood from known infested areas, such as San Diego County.
GSOB Zone of Infestation (ZOI) Showing the GSOB Distribution in
San Diego, Riverside, Orange, and Los Angeles Counties

Map courtesy of Kim Corella at CalFire
Maps: (select and click)
- GSOB Distribution in San Diego, Riverside and Orange Counties
- GSOB Distribution in San Diego County
- GSOB Distribution in Riverside County
- GSOB Distribution in Orange County
- GSOB Distribution in Los Angeles County
GSOB Distribution in San Diego County
(2018)

GSOB Distribution: Riverside County
(2018)

GSOB Distribution: Orange County
(2018)

GSOB Distribution: Los Angeles County
(2018)
