This study investigated whether prior host plant rearing experience influences olfactory responsiveness in the green peach aphid Myzus persicae (Sulzer). Two aphid cohorts were tested per host species (brinjal Solanum melongena L. and chilli Capsicum annuum L.): an experienced cohort reared on the respective host for at least two generations, and a non experienced cohort reared on a neutral non solanaceous host. Using a dual choice cylindrical olfactometer, three binary volatile comparisons were assessed: mechanically damaged vs. healthy, healthy vs. aphid infested, and aphid infested vs. mechanically damaged. Experienced aphids showed markedly higher response rates (brinjal: 83.3%; chilli: 80.0%) compared to non experienced aphids (brinjal: 33.3%; chilli: 30.0%). This difference was statistically significant (Mann–Whitney U = 0.0, p < 0.01, effect size r > 0.83 for both hosts). No directional preference reached statistical significance in binomial tests (all p > 0.05). However, biologically relevant tendencies were observed: experienced brinjal aphids tended to prefer healthy over mechanically damaged volatiles (preference index PI = –0.50), and experienced chilli aphids showed a moderate tendency toward aphid infested cues over mechanically damaged ones (PI = +0.30). A significant experience by volatile type interaction was detected for chilli in the aphid infested vs. mechanically damaged comparison (Fisher’s exact test, OR = 21.0, p = 0.020).These findings demonstrate that prior host plant rearing experience substantially increases olfactory responsiveness in M. persicae and modulates preference tendencies in a host specific manner, consistent with experience dependent olfactory priming................. Keywords:...................Green peach aphid, Host selection, Herbivore-induced plant volatiles, Prior experience, Behavioral plasticity.