Olive Fruit Fly

Family Tephritidae
Dacus oleae (Gmelin)
Hosts (main): Olive, both cultivated and wild. Pest status: The most serious pest of olive in the Mediterranean region. 30% crop loss common. Yield can be reduced by as much as 80–90%. The oil from attacked fruit is inferior and has an unpleasant flavour. The maggots are 1–6 mm long, according to their age; larval development takes 10–15 days, according to temperature. The complete life-cycle in the summer takes about four weeks and there are typically three or four generations per year.

Resource: Pests of Crops in Warmer Climates and Their Control