A multi-state, multi-institutional program funded by the Risk Avoidance and Mitigation Program (RAMP) and IFAFS programs developed alternative pheromone based programs for control of codling moth in the larger canopies of mature walnut orchards. Using a multi-tiered approach which integrates efforts of local industry, Cooperative Extension, private individuals, and campus based researchers, several alternatives were developed based on alternative delivery devices for codling moth pheromone, e.g. microencapsulated formulations or aerosol emitters. Early efforts with microencapsulated pheromone applications indicated the more dense canopies of mature walnut orchards helped to minimize the photodegradation of codlemone, a phenomenon that has limited the efficacy of these formulations in pome fruit orchards. Significant reductions in codling moth damage from applications of sprayable pheromone were noted in a three-region, multi-orchard trial in 2004, but additional supplementation by an insecticide treatment was still required. Damage suppression was not equivalent to damage suppression observed with hand-applied dispensers in pome fruit orchards. Large scale areawide implementation projects using reduced rates of aerosol emitters per acre are underway in 2005 that will incorporate information developed by the larger programs. Introduction of newer more selective chemistries, incorporation of low volume bait sprays for pests such as the walnut husk fly, development of new monitoring tools based on plant kairomones, and integration of the impacts of these newer chemistries on the natural enemies in walnut orchards are key elements to the program.