Study of the olive fruit fly biology (Bactrocera oleae) on its natural host

The olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae), is a global olives pest, causing a significant 15% of yearly fruit loss. The potential crop damage can escalate to 100% without the use of insecticides. In this study, we mass-reared olive fruit flies on olives collected under controlled laboratory conditions to observe their life cycle, development stages, and associated damage. Each female laid about 200-350 eggs, with larval development lasting on average 11.24±0.92 days and pupal eclosion occurring in approximately 11.63±0.98 days. The average development time from egg to adult on olives was 24-30 days. Our findings support the notion that larvae excessively damaged olive pulp, leading to poor-quality fruit oil and fruit decay. This study provides crucial data on the biology and economic significance of the olive fruit fly.