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HLB Virus Information and Resources 

**CITRUS QUARANTINE EXPANDED TO VALLEY CENTER AS OF MARCH 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. 

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. 

Map showing citrus pest control zones in California, with areas marked by blue, green, and purple indicators.

 

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

 

Infographic about citrus quarantine in California due to Huanglongbing (HLB) disease, symptoms, affected areas, and actions to take.