APHIS Expands the Citrus Greening Quarantined Area in California

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December 18, 2019



Subject:           APHIS Expands the Citrus Greening Quarantined Area in California


To:                   State and Territory Agricultural Regulatory Officials



Effectively immediately, the USDA’s Animal and Plant Health Inspection Service (APHIS), in cooperation with the California Department of Food and Agriculture (CDFA), and the California citrus industry is expanding the area quarantined for citrus greening (Candidatus Liberibacter asiaticus) in California. APHIS is adding portions of Los Angeles and San Bernardino Counties in California. APHIS is taking this action because of citrus greening detections in plant tissue samples collected in multiple locations in California.


APHIS is applying safeguarding measures on the interstate movement of regulated articles from the regulated areas in California. These measures parallel the intrastate quarantine that CDFA established on November 22, 2019. This action is necessary to prevent the spread of citrus greening to non-infested areas of the United States.


The specific changes to the regulated areas in California are attached and can also be found at:




APHIS will publish a notice of this change in the Federal Register. For additional information, you may call the Director of Cotton Pests and Specialty Crops, Shailaja Rabindran, at 301-851- 2167.




Osama El-Lissy

Deputy Administrator

Plant Protection and Quarantine


Attachment: FO - SPRO - DA-2019-35 - Citrus Greening expansion in CA.docx (002).pdf