Abai, MR

6th International Congress of DipterologyKey Words: Neoceratitis cyanescens, Bactrocera cucurbitae, Ceratitisrosa, traps, food bait∗∗∗∗∗∗∗∗∗∗Control of nuisance flies in Australian cattle feedlotsUrech, R. (1), P.E. Green (1), D.M. Leemon (1), J.A. Hogsette (2), A.G. Skerman (1),D.G. Mayer (1), G.W. Brown (1), G.H. Everingham (1), V.J. O’Shea (1), D. Papacek (3)& T. Meredith (3)(1) Department of Primary Industries & Fisheries, Animal Science, Yeerongpilly 4105,Queensland, Australia(2) USDA-ARS, Center for Medical, Agricultural and Veterinary Entomology,Gainesville, Florida 32604, USA(3) Bugs for Bugs, Mundubbera 4626, Queensland, AustraliaTemporal and spatial distributions of nuisance fly species have beendetermined in Australian cattle feedlots. The prevalence and impact ofnatural enemies, such as parasitic wasps, entomopathogenic fungi andmites, were also established.The impact of different under-the-fence-cleaning regimes and of alarvicide treatment on fly production was quantitatively assessed in afeedlot. Shorter cleaning intervals resulted in substantially suppressedMusca domestica populations.A local field strain of the parasitic wasp Spalangia endius was mass rearedwith several production parameters being investigated. Laboratoryexperiments and field releases of S. endius were carried out to determinetheir impact on fly production.Isolates of the entomopathogenic fungi, Metarhizium anisopliae andBeauveria bassiana isolated from flies and soil, have been characterised284