SAN DIEGO, CA — California authorities have implemented a quarantine spanning 77 square miles in certain areas of San Diego County following the discovery of Mexican fruit flies during a routine inspection in La Mesa.
The quarantine zone includes Spring Valley, Bonita, and the cities of El Cajon, La Mesa, Lemon Grove, San Diego, and Santee. According to the California Department of Food and Agriculture, the zone is bordered by the San Diego River to the north, Sweetwater Reservoir to the south, Interstate 15 to the west, and El Cajon to the east.
The CDFA, alongside the San Diego County Agricultural Commissioner and the U.S. Department of Agriculture, are collaborating to manage the infestation. Strategies include releasing sterile male Mexican fruit flies, applying an organic insecticide to properties within 200 meters of sightings, and removing fruit from within 100 meters of affected locations.
This quarantine impacts growers, wholesalers, retailers, and nurseries dealing with host fruits or plants. Residents who garden at home are encouraged to consume their produce onsite and refrain from transporting it off their property.
Individuals who suspect an infestation are urged to contact the state’s toll-free Pest Hotline at 1-800-491-1899.
Mexican fruit flies can infest over 50 varieties of fruits and vegetables, posing a threat to California’s agricultural exports, local food supply, and home gardens. Officials stated that these pests frequently enter the state through fruits or vegetables brought back illegally by travelers from affected regions.
