California Ag Network

Tag: Alameda County

  • Mediterranean Fruit Fly Quarantine in Santa Clara, Alameda Counties Over

    Effective July 8, 2026 the CDFA is removing the MedFly quarantine located in Santa Clara and Alameda counties. Maps of any remaining MedFly quarantine boundaries can be found at www.cdfa.ca.gov/plant/medfly/regulation.html.

    Regulated articles and conditions for intrastate movement under the quarantine can be found at Title 3 California Code of Regulations (CCR) section 3406. Pursuant to Title 3 CCR section 3406 any interested party or local entity may appeal a quarantine area designation.

    Process to Appeal the Area Boundaries

    The appeal must be submitted to the Department in writing and supported by clear and convincing evidence. The appeal must be filed no later than ten (10) working days from the date of this notification. During the pending of the appeal, the designated Quarantine Boundary under appeal shall remain in effect.

    Mail Appeals to:
    CDFA – Pest Exclusion
    1220 N St., Room 221
    Sacramento, CA  95814

    Electronic Notification of Boundary Changes

    California Code of Regulation allows interested parties to be notified of quarantine area boundary changes, as well as the opportunity to submit quarantine boundary appeals. If interested in receiving notifications, please sign up for regulatory updates through the email notification list at: https://public.govdelivery.com/accounts/CADFA/subscriber/new

    For questions regarding the regulations or map, please email Vince Arellano at vince.arellano@cdfa.ca.gov or call 916-654-0312.

  • APHIS Expands Mediterranean Fruit Fly Quarantine in California

    The Animal and Plant Health Inspection Service (APHIS) expanded the Santa Clara Mediterranean fruit fly (Ceratitis capitata; Medfly) quarantine in Alameda and Santa Clara Counties, California. This action parallels the California Department of Food and Agriculture (CDFA) expansion of the Santa Clara Medfly quarantine published on January 2.

    APHIS and CDFA expanded the Santa Clara Medfly quarantine following the confirmed detection on December 17 of one wild male Medfly from a trap in on a residential property in an orange tree in Milpitas, Santa Clara County. This action expanded the quarantine by 17 square miles and does not include additional commercial agriculture. The amended quarantine encompasses 241 square miles with 58.76 acres of commercial agriculture, including grape, olive, orange, pepper, stone fruit, and tomato.

    APHIS is applying safeguarding measures and restrictions on the interstate movement of regulated articles to prevent the spread of Medfly to non-infested areas of the United States, as well as to prevent the entry of these fruit flies into foreign trade. APHIS is working with CDFA and the Agricultural Commissioners of Alameda and Santa Clara Counties to eradicate this transient fruit fly population following program guidelines for survey, treatment, and regulatory actions

    The APHIS Exotic Fruit Flies website contains descriptions and maps of all current Federal fruit fly quarantine areas. APHIS will publish a notice of this change in the Federal Register. —USDA Animal and Plant Health Inspection Service