This study evaluated the effectiveness of solid male lures, specifically methyl eugenol (ME), cuelure (C-L), and tri-med lure (TML) combined with insecticides, for trapping fruit flies in three different green zones in Bangladesh. The study also investigated the non-target insect attraction to traps using these lures. The traps were set up across nine locations in three distinct experimental areas: i. Atomic Energy Research Establishment (AERE) colony, ii. AERE office campus, and iii. Jahangirnagar University (JU) campus, covering agricultural fields, backyard gardens, and mixed plantations. Data were collected weekly over 18 weeks from May to September 2015. The captured fruit fly species, including Zeugodacus cucurbitae (Coq), Zeugodacus tau (Walker), Bactrocera dorsalis (Hendel), and Bactrocera zonata (Saunders) were monitored, and non-target insect captures were recorded. The highest capture rate of dacine fruit flies was at the JU campus, with 98.41% of B. dorsalis (538.05 ± 62.28 fly/trap/week (FTW)) being captured using ME. C-L attracted higher numbers of Z. cucurbitae, while Z. tau was most attracted to C-L at both the AERE office campus and the JU campus. No Bactrocera species were attracted to TML. The majority of non-targets were saprophagous Diptera, such as Drosophila and Milichiidae, along with Hymenoptera (black ants), especially in traps baited with C-L and ME. The study showed that the lure responses were species-specific, with no adverse effects on beneficial non-target insects. The combination of DDVP strips and solid lures proved to be an effective method for mass-trapping dacine fruit flies.
