Orientational responses of four species of feral tortricid moths to polyethylene-tube pheromone dispensers were observed in a 0.8 ha apple orchard treated with such pheromone dispensers and in an untreated 0.8 ha orchard. Male oblique-banded leafrollers, Choristoneura rosaceana (Walker) (mean 7.2 ± 0.4 over 21 nights), Oriental fruit moths, Grapholita molesta (Busck) (mean 10.5 ± 2.1 over 20 evenings), and the redbanded leafrollers, Argyrotaenia velutinana (Walker) (mean 2.0 ± 1.1 over 14 nights) were attracted within 100 cm of their respective polyethylene-tube pheromone dispensers in the untreated orchard. Furthermore, C. rosaceana (mean 1.95 ± 0.7 over 17 nights) and G. molesta (mean 1.53 ± 0.4 over 20 evenings) came within 100 cm of their respective polyethylene-tube pheromone dispensers in the pheromone-treated orchard. Most visits lasted less than 10 s, after which the majority of moths departed by flying upwind. No codling moth, Cydia pomonella, were observed orienting to or landing near their respective polyethylene-tube dispensers in either the untreated or pheromone-treated orchards, despite the fact that substantial numbers were captured in monitoring traps per night of observation (6.0 ± 1.7) in the untreated orchard. These results provide support for the idea that false-plume-following is an important component of the mechanisms mediating communicational disruption in moths by polyethylene-tube dispensers. Our current efforts are focusing on the development of an attractive, wax based, ‘female equivalent’ point source dispenser to improve the effectiveness of mating disruption by false-plume-following.