Tuesday, December 11, 2007
D0421

Impact of pheromone trap color on capture of pests and non-target insects in eastern U.S. apple orchards

Clayton T. Myers, cmyers@afrs.ars.usda.gov, USDA-ARS, Appalachian Fruit Research Station, 2217 Wiltshire Road, Kearneysville, WV, Greg Krawczyk, gxk13@psu.edu, Pennsylvania State University - Fruit Research & Extension Center, Entomology, 290 University Dr, Biglerville, PA, and Arthur Agnello, ama4@cornell.edu, Cornell University, Dept. of Entomology, NYS Agric. Expt. Sta, 630 W. North St, Geneva, NY.

Pheromone traps are a useful and widely used tool for monitoring pest activity in commercial apple orchards. Studies were conducted to evaluate delta-style traps painted with different colors (orange, red, yellow, green, blue, and white) for capture of obliquebanded leafroller, Choristoneura rosaceana (Harris) and oriental fruit moth, Grapholita molesta (Busck) as well as non-target muscoid flies and honeybees, Apis mellifera L. An additional study evaluated plastic traps of various colors in comparison with a standard delta trap for capture of obliquebanded leafroller, oriental fruit moth, tufted apple bud moth, Platynota idaeusalis (Walker), and codling moth, Cydia pomonella L. Capture of obliquebanded leafroller and oriental fruit moth was not significantly affected by trap color. Capture of non-target flies and honeybees tended to be higher in blue and white (both painted and unpainted) delta-style traps in New York apple orchards, although there was some variability in this response by orchard site. Moth responses to other colored plastic traps were variable and our observations may alter existing recommendations on usage of pheromone traps for monitoring pests of apples in the eastern U.S.


Species 1: Lepidoptera Tortricidae Grapholita molesta (oriental fruit moth)
Species 2: Lepidoptera Tortricidae Choristoneura rosaceana (obliquebanded leafroller)
Species 3: Lepidoptera Tortricidae Platynota idaeusalis (tufted apple budmoth)