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Official Pest Reports

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

USA Flag Ceratitis capitata (Mediterranean fruit fly) (Medfly) – Removal of Quarantine Area in Santa Clara County, California
Date posted: 08/05/2008
Contact: Wayne Burnett, Domestic Coordinator, Fruit Fly Exclusion and Detection Programs at (301) 734-4387
On October 26, 2007, the Animal and Plant Health Inspection Service (APHIS) designated a portion of Santa Clara County as a Medfly quarantine area and applied phytosanitary restrictions on the interstate movement of articles from that area to prevent the spread of Medfly to noninfested areas of the United States. Since that time, APHIS has worked cooperatively with the California Department of Food and Agriculture and Santa Clara County’s Division of Agriculture to eradicate the transient population of Medfly from that area through various population control actions, including the release of sterile Medflies and the application of foliar bait sprays.

Eradication was concluded after sufficient time passed without finding additional Medflies in the area. Specifically, an intensified fruit fly trap surveillance system was deployed and monitored for three life cycles, calculated through a modeling process specific for Medfly.

This action is effective immediately. This change to the quarantine area will be reflected on the following designated website which contains a description of all the current Federal fruit fly quarantine areas:  

Under IPPC standards, Ceratitis capitata is considered to be a pest that is absent: eradicated from Santa Clara County, California in the United States.

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