HLB Virus Information and Resources
**CITRUS QUARANTINE EXPANDED IN SAN DIEGO COUNTY AND ORANGE COUNTY AS OF SEPTEMBER 2025**
Parts of San Diego County are under a citrus quarantine due to the HuanglongBing (HLB) virus spreading from the Asian Citrus Psyllid. Oceanside, Valley Center, Escondido, and now Fallbrook are under quarantine.
From CDFA Citrus Quarantine Interactive Map.
IF YOU BELIEVE YOUR PLANT IS AFFECTED PLEASE CALL THE CITRUS PEST HOTLINE: 1-800-491-1899
The map of quarantined areas can be found on the CDFA Website.
The regulation and quarantine boundaries can also be found on the CDFA Website.
The Citrus Pest and Disease Prevention Program
Citrus Insider Informational Materials
Click here for information on the County's Citrus Quarantine Program
