Summary: The objectives of this project were: 2002 ● Determine if cherry fruit fly distributions and infestation levels can be predicted using traps and visual counts. ● Determine relationship between infestation rates in previous years (as determined by trap catches and infestation rates) and future infestations. 2003 ● Determine effects of tree size on ability of traps to detect flies and predict infestation levels. ● Determine ability of traps to reduce fly infestations.