We evaluated an attract-and-kill system consisting of imidacloprid-treated (Provado 1.6F) sugar-starch spheres against Caribbean Fruit Fly, Anastrepha suspensa (Loew) (CFF), and its parasitoid, Diachasmimorpha longicaudata (Ashmead). Experiments were conducted in the laboratory with collapsible 30 X 30 X 30cm³ fine screen mesh cages. Mass reared sterile CFF were used for the study and flies were exposed to 14:10 L:D, 25⁰C temp and 60% RH. Four sphere treatments consisting of 2, 4, and 8% AI imidacloprid and an untreated sphere (no imidacloprid) were evaluated for their effectiveness against CFF. Behavioral observations were made at 2, 4, 12, 24, 48 and 72 hours after flies were released into the cages. Mortality rates were significantly higher in the treatments containing imidacloprid compared with the control. CFF males appear to be more susceptible to treated spheres than females. In a separate experiment, two treatments consisting of an imidacloprid-treated sugar-starch sphere with 2% AI and an untreated control sphere were evaluated against D. longicaudata. Significantly fewer D. longicaudata were killed with untreated control spheres compared with spheres that contained 2% AI imidacloprid.  Early results may indicate that although imidacloprid-treated spheres may reduce insecticide residues on fruit, imidacloprid treated spheres are likely to have minimal negative effects on non-target organisms.