Pheromone-Based IPM Demonstration to Manage Codling Moth in Walnuts and Improve Water Quality

The University of California will manage codling moth populations in walnuts by pheromone mating disruption using aerosol puffers and validate pheromone application technology required for control of codling moth with an emphasis on "area-wide" control over multiple years. Aerosol puffers will be used to treat up to 2 acres each, and only have to be applied once per season, supplemented with an insecticide in the first year. In subsequent years supplemental sprays will be decreased or eliminated based on monitoring traps and canopy counts. This project will assist with and demonstrate the use of monitoring for CM damage for growers who are interested in implementation of pheromone mating disruption.