The number of Mediterranean fruit flies discovered in south Florida has risen to 48 by June 25.

In addition to 48 live flies, 11 larvae had been found, as of June 25, said Denise Feiber, public information director of the Florida Department of Agriculture and Consumer Services, Tallahassee.

The flies have been found in residential neighborhoods in Boca Raton and Del Ray, Feiber said. The furthest distance between two finds has been 1.5 to 2 miles.

None of the live flies or larvae have been found within 30 miles of a commercial citrus growing area, Feiber said. Some vegetable fields, however, are less than 10 miles away.

The flies have been found on mango, loquat and other trees, she said.

A 70-square-mile area has been quarantined, and sterile flies have been released and traps added to limit their spread, Feiber said.

Mediterranean fruit flies can attack more than 250 fruits, vegetables and nuts, including apples, citrus, mangoes, tomatoes and peppers.

Florida has 56,000 traps monitoring the pest throughout the state. Inspectors check the traps every 21 days and every 14 days in high-risk areas.

Florida Medfly count rises