Factors affecting detection and trapping efficacy of Mediterranean fruit flies

Abstract

Adult trapping is essential for detecting, monitoring, and controlling fruit fly pests (Diptera: Tephritidae), its efficacy depends on both biotic and abiotic factors. Although efficient commercial trapping systems exist, capturing major invasive tephritid pests remains challenging. This study investigated whether sex, thermal history, trap location, and climatic conditions affect the trapping efficacy of Mediterranean fruit fly (medfly) adults. Four release-recapture trials were conducted with marked adults (9600 in total) acclimated at 15, 25, 30 °C or maintained in outdoor conditions: two early in spring and two in summer. Plastic McPhail-type and Jackson traps baited with Biolure and trimedlure dispensers, respectively, were placed on either non-host (olive trees) and host (Citrus) trees. Adults were released 2–3 m from each trap.