Fruit fly discovery puts part of Alameda County into quarantine

FREMONT — The spotting of a single mated female Mediterranean fruit fly has sent 71 square miles of southern Alameda County into a quarantine as officials focus on eradicating the invasive pest, the California Department of Food and Agriculture’s Plant Health and Pest Prevention Services Division announced Friday.

Residents and any growers, wholesalers and retailers of susceptible fruit are subject to the quarantine. The targeted area has boundaries of Highway 84 on the north, the Alameda and Santa Clara county line on the south...