Summary: The objectives for this project were: 2001 ● Determine cherry fruit fly activity within days and during the season. ● Relate fly abundance to larval infestation of fruit. ● Determine distances flown by the flies. 2002 ● Determine host use patterns by flies in eastern and western Washington. ● Determine the preference of flies for different varieties of sweet and sour cherries and native hosts in the laboratory, and ... ● Developmental rates of flies in these different hosts. 2003 ● Continue to monitor fly populations on sour and sweet cherries in eastern and western Washington and identify new hosts. ● Identify food sources of flies on different cherry hosts over the season in eastern and western Washington. ● Evaluate the food sources and preferences in the laboratory, with goal of incorporating foods in baits for control.
