Country: United States

Title:

Bactrocera dorsalis (Oriental Fruit Fly): APHIS Removes Quarantine in Orange County, California

Contact:
Catherine Marzolf, National Policy Manager, 386-666-9932 or catherine.a.marzolf@usda.gov

Report:

On June 9, 2025, the USDA’s Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) removed the Oriental fruit fly (Bactrocera dorsalis; OFF) quarantine in Orange County, California, designated the Garden Grove quarantine. This action released 88 square miles including 4.5 acres of commercial agriculture from quarantine. Release from quarantine occurred after three generations elapsed since the date of the last detection, based on a degree-day model.

APHIS and CDFA established the Garden Grove OFF quarantine on October 31, 2024, and expanded it on November 4, in response to detections confirmed between October 23-29 of eight male OFF in the cities of Garden Grove and Santa Ana from traps in fruit trees in residential areas.

APHIS restricted the interstate movement of regulated articles from this area to prevent the spread of OFF to non-infested areas of the United States. APHIS worked cooperatively with CDFA and the Orange County Agricultural Commissioner to eradicate this transient OFF population through various control actions per program protocols.

The APHIS Exotic Fruit Flies website contains a description of all current Federal fruit fly quarantine areas. APHIS will publish a notice of this change in the Federal Register.

Under IPPC standards, Bactrocera dorsalis is considered to be a pest that is absent and eradicated from the United States.

Posted Date: June 30, 2025, 4:29 p.m.