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San Diego County

To report firewood or trees suspected of being infested with GSOB:
Call the GSOB Hotline (951) 659-8328 or use this online form.

To request GSOB information materials and handouts:
Contact Heidi Holmquist: hholmquist@ucdavis.edu.

Please note that San Diego County is known to be widely infested with Goldspotted Oak Borer (see zone of infestation map here).

Find a pest control professional or arborist in your area.

For questions about GSOB, please contact:

County of San Diego Entomology Department
Call 1-800-200-2337 or email Labs.AWM@sdcounty.ca.gov to submit samples/photos for analysis.

dead oak