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San Bernardino 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 Annika Nabors: ajnabors@ucanr.edu.

GSOB has been found in several widely dispersed areas in San Bernardino County (see zone of infestation map here).

Find a pest control professional or arborist in your area.

For other GSOB questions, please contact:

San Bernardino County Master Gardeners
Website: https://mgsb.ucanr.edu/

Kim Corella
CAL FIRE, Forest Health Specialist

David Haas
CAL FIRE, Forester (San Bernardino Unit)

Photo Source: Kim Camilli, CAL FIRE
Photo Source: Kim Camilli, CAL FIRE