Insect Behavior and Chemical Communication Systems. 80% research responsibilities and 20% technical service to the department at Cornell in the area of chemical ecology. Current projects include: I) Defining host fruit volatile blends for different hawthorn species in the southern U. S. infested by Rhagoletis pomonella fly populations (funded by NSF) and II) volatile blends for black hawthorn in Washington State, a potential source of flies infesting commercial apples (funded by the Washington State Tree Fruit Commission); III) The neuroethology of male moth response specificity for sex pheromone blends, involving the technique of transplanting antennal imaginal disks between three heliothine moth species, (funded by NSF); IV) Defining key grape volatiles used for host location as a basis for assessing phenology and management of grape berry moth (funded by USDA-NRI).