Despite the discovery of four Mediterranean fruit flies in the San Fernando Valley, Ventura County officials are not worried about a similar infestation.
Last week, when the discovery of two fertile, female flies signaled that hundreds more could exist, Gov. George Deukmejian declared a local emergency for Northridge, less than 10 miles from Ventura County. A 16-square-mile area was sprayed aerially with the pesticide malathion Monday night.
But Don Anderson, Ventura County's deputy commissioner of agriculture, doubts that the fruit-devouring pests will migrate into the county, where no Medfly has been found.
Anderson had no theory to explain why Ventura County has been spared.
"We've just been lucky," he said.
Dr. Isi Siddiqui, assistant director of the state Department of Food and Agriculture, suggested that the county may be free of them because it has no major airport.