Summary: The project objectives were to develop an effective lure for Washington apple maggot flies based on discrimination of host fruit odors. 1. We will collect flies for flight tunnel tests and will use traps baited with hawthorn and apple volatile blends in central and western Washington. 2. We will do a preliminary comparison of the behavioral responses, in a flight tunnel, of apple maggot from Washington and New York to odorants already identified from apple and eastern hawthorn fruits.
