Behavioral responses of viruliferous and non-viruliferous green peach aphids to volatiles produced by potato plants infected with PLRV were investigated by measuring their emigration away from the headspace immediately above PLRV-infected leaflets, sham-inoculated leaflets, uninoculated leaflets and a paper leaf model. Tests were conducted in darkness with thirty aphids being placed on a screened floor suspended over the surface of treatment leaflets. Emigration was recorded every 10 minutes for 1 hour and aphids no longer over the leaflet were removed from the test arena at each observation time. For both viruliferous and non-viruliferous aphids, maximum emigration was significantly lower from PLRV-infected leaflets, intermediate from the sham-inoculated and uninoculated leaflets, and highest from the paper leaf. There were no significant differences in emigration rates between the plant treatments, but the rates away from the paper leaves were significantly higher than for any of the plant treatments. Over all treatments, maximum emigration was lower for viruliferous aphids than for non-viruliferous aphids. However, the ratios of maximum emigration for non-viruliferous and viruliferous aphids away from the paper leaf models and the PLRV-infected leaflets suggest that viruliferous aphids are twice as likely to remain arrested over PLRV-infected leaflets than non-viruliferous aphids. The viruliferous aphids were reared on PLRV-infected Physalis floridana while the non-viruliferous aphids were reared on uninfected plants, making it possible that nutritional history contributed to their differential responses. However, direct effects of virus acquisition on aphid behavioral responses cannot be ruled out by these experiments.