SACRAMENTO — A portion of San Diego County has been placed under quarantine for the Mexican fruit fly following the detection of seven flies within the City of Encinitas. The United States Department of Agriculture (USDA), the San Diego County Agricultural Commissioner, and the California Department of Food and Agriculture (CDFA) are working collaboratively on this project.
The quarantine area in San Diego County measures 65 square miles, bordered on the north by McClellan Palomar Airport; on the south by San Dieguito Road; on the west by the Pacific Ocean; and on the east by the San Dieguito River. A link to the quarantine map may be found here: www.cdfa.ca.gov/plant/mexfly/regulation.html.
Sterile male Mexican fruit flies will be released in the area as part of the eradication effort. The release rate will be 325,000 males per square mile per week in an area up to 50 square miles around the infestation. Sterile male flies mate with fertile female flies in the natural environment but produce no offspring. The Mexican fruit fly population decreases as the wild flies reach the end of their natural life span with no offspring to replace them, ultimately resulting in the eradication of the pest. In addition, properties within 200 meters of detections are being treated with an organic formulation of Spinosad, which originates from naturally-occurring bacteria, in order to remove any mated female fruit flies and reduce the density of the population.
The quarantine will affect anyone who grows, sells, or gives fruit or plants away to others. This includes growers, wholesalers, and retailers of susceptible fruit in the area as well as nurseries that grow and sell Mexican fruit fly host plants. All host fruit grown within the quarantine area must be treated or processed before being sold. All nursey plants with host fruit must be treated or placed off sale. The quarantine will also affect local residents – home gardeners are urged to consume homegrown produce on site and not move it from their property. These actions protect against the spread of the infestation to nearby regions where it could affect California’s food supply and our backyard gardens and landscapes.
The Mexican fruit fly can lay their eggs in and infest more than 50 types of fruits and vegetables, causing severe impacts on California agricultural exports and backyard gardens alike. For more information on the pest, please see the pest profile at: www.cdfa.ca.gov/plant/go/MexFly. Residents who believe their fruits and vegetables are infested with fruit fly larvae are encouraged to call the state’s toll-free Pest Hotline at 1-800-491-1899.
The eradication approach used in the Encinitas area of San Diego County is the standard program used by CDFA and it’s the safest, most effective and efficient response program available.
While fruit flies and other invasive species that threaten California’s crops and natural environment are sometimes detected in agricultural areas, the vast majority are found in urban and suburban communities. The most common pathway for these invasive species to enter our state is by “hitchhiking” in fruits and vegetables brought back illegally by travelers as they return from infested regions of the world. To help protect California’s agriculture and natural resources, CDFA urges travelers to follow the Don’t Pack a Pest program guidelines (www.dontpackapest.com).
–California Department of Food and Agriculture
For more articles out of California, click here.
RECOMMENDED ARTICLES
SACRAMENTO — A portion of Orange County has been placed under quarantine for the Oriental Fruit Fly following the detection of eight flies in and around the city of Fountain Valley. Also included in the quarantine are portions of the cities of Anaheim, Buena Park, Costa Mesa, Cypress, Garden Grove, Huntington Beach, Orange, Santa Ana, […]
SACRAMENTO — A portion of San Diego County has been placed under quarantine for the Mexican fruit fly following the detection of six flies and one larva in and around the unincorporated area of Valley Center. The United States Department of Agriculture (USDA), the San Diego County Agricultural Commissioner, and the California Department of Food […]
MARYSVILLE, Kan. — Flies can be more than an annoyance – they can even be dangerous, whether impacting a ride with your horse in a single, painful bite, or transmitting diseases to horses and cattle. “Flies are pesky, they’re hard to control. And a lot of times, we can’t really control them adequately with only […]
MARYSVILLE, Kan. — Fly season is here — these little pests cause significant loss of production and spread disease readily. When we are talking about fly control, there are three big players: the horn fly, the face fly, and the stable fly. All have different life cycles, feeding patterns, and resting habits. For this reason, […]
SACRAMENTO — A portion of San Bernardino and Los Angeles Counties have been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of two wild flies in and around the City of Upland, San Bernardino County. The USDA, CDFA, and the San Bernardino and Los Angeles County agricultural commissioners are working collaboratively […]
