In 2004 field experiments, we compared the effectiveness of various deployment densities of 0.1 ml paraffin wax drops containing 5 % pheromone versus Isomate M-Rosso ‘rope’ dispensers for disruption of Grapholita molesta (Busck). Treatments were evaluated in 0.05 ha (12 tree) plots of Delicious apples. The application densities of 0.1 ml wax drops were: 820 / Ha; 2,700 / Ha; 8,200 / Ha; and 27,300 / Ha. Wax drops were compared with Isomate M-Rosso ropes at 500 / Ha and untreated control plots. Orientational disruption, as measured by inhibition of moth captures in pheromone-baited delta traps, was greatest in plots that received 27,300 drops / Ha. (99.2 %) and 8,200 drops / Ha (99.4 %). Over 55 % of tethered, virgin females were mated in control plots after one night of deployment. However, no mating was recorded at the two highest application densities of wax drops where orientational disruption to traps exceeded 99 %. Mating ranged from 7 – 20 % among the other treatments, including Isomate rope dispensers. G. molesta males were observed closely approaching pheromone dispensers in plots containing ropes and wax drops, documenting competitive attraction between synthetic pheromone sources and feral females. In 2005, a mechanized applicator for deploying paraffin-wax drops was evaluated in replicated 0.6 ha plots. The applicator delivers ca. 100-200 wax drops (0.05-0.1 ml) per tree and can treat 1 Ha of 6 m tall trees in ca. eight minutes. Pheromone treatments deployed with this mechanized applicator effectively disrupt G. molesta for 3-4 weeks or ca. one moth generation.