Tuesday, December 11, 2007
D0377

House fly (Musca domestica) and stable fly (Stomoxys calcitrans) parasitism following sustained releases of pteromalid wasps in southern dairies

Kelly Loftin, kloftin@uaex.edu1, Sheri Brazil, sbrazil@uaex.edu1, Tanja McKay, tmckay@astate.edu2, Wes Watson, Wes_Watson@ncsu.edu3, Justin Edwards4, Dayton Steelman, dsteelm@uark.edu5, A. L. Szalanski, aszalan@uark.edu6, Jodie Pennington, jpennington@uaex.edu1, Karl VanDevender, kvan@uaex.edu1, and Scott Willard, swillard@ads.msstate.edu7. (1) University of Arkansas, Cooperative Extension Service, Cralley Warren Lab, 2701 N. Young Ave, Fayetteville, AR, (2) Arkansas State University, Department of Biological Sciences, P.O. Box 599, Arkansas State University, State University, AR, (3) North Carolina State University, Entomology, 1108 Grinnells Lab, Campus Box 7627, Raleigh, NC, (4) Mississippi State University, Animal and Dairy Science, P.O. Box 9815, Mississippi State, MS, (5) University of Arkansas, Department of Entomology, 319 Agriculture Building, Fayetteville, AR, (6) University of Arkansas, 319 Agri Building, Fayetteville, AR, (7) Mississippi State University, Department of Animal & Dairy Science, Box 9815, Mississippi State, MS

In efforts to evaluate alternative(and organic) methods for managing house flies and stable flies in southern dairies, pteromalid wasps were released weekly in Arkansas, Mississippi and North Carolina dairies. A commercial mixture of Muscidifurax zaraptor and Muscidifurax raptorellus was released in 2006 and 2007 and Trichomalopsis sarcophagae was released in 2007. Percent house fly parasitism was determined using sentinel house fly pupae and collections of naturally occurring house fly and stable fly pupae. Parasitism rates at "release" dairies were compared to dairies not receiving wasps. Preliminary results on percent parasitism and the impact of pteromalid wasps on house fly populations will be discussed.


Species 1: Diptera Muscidae Musca domestica (house fly)
Species 2: Hymenoptera Pteromalidae Muscidifurax raptorellus
Species 3: Hymenoptera Pteromalidae Muscidifurax zaraptor