Olive fruit fly - Bactrocera oleae Rossi (Diptera, Tephritidae) is the most important olive pest that causes direct fruit loss and has negative influence to olive oil quality. Traditionally, supression methods have been based on cover spraying using environmentally not friendly insecticides. Other, more selective methods, attract and kill and mass-trapping have been developed as ecologically better alternative. The effectiveness of bait spray and mass trapping methods was evaluated by testing of ready made bait products Success Bait and Eco Trap.
The trials were conducted in the area of southern Dalmatia, near city of Ston, during 2008. year. The selected orchards were planted mainly with domestic cultivars Oblica and Bjelica. Trials were set on three olive orchards, bait spray plot, mass trapping plot and control plot. Data were collected in weekly intervals and were analysed as adults captures on traps for monitoring which were set in all experimental plots and fruit infestation. Evaluation shows no difference between average number of olive fruit flies captured on control traps during experiment on bait spray and mass trapping method. Evaluation of effectiveness showed higher effectiveness of mass trapping method in comparation with seven bait spray treatments. Evaluation of effectiveness results confirmed high effectiveness of both improoved methods.