Effectively immediately, the 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 (Huanglongbing) in Los Angeles and Orange Counties, and adding a quarantine area in Riverside and San Bernardino Counties. APHIS is taking this action because of the positive detections of citrus greening in plant tissue samples collected in multiple locations.
APHIS is applying safeguarding measures on the interstate movement of regulated articles from the regulated areas in Los Angeles, Orange, Riverside, and San Bernardino Counties. These measures parallel the intrastate quarantine that the CDFA initiated on September 8. 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 can be found at:
APHIS will publish a notice of this change in the Federal Register.
Under IPPC Standards, 'Candidatus Liberibacter asiaticus' is considered to be a pest that is present, only in some areas, and subject to official control to limit its spread in the United States.