Dr. Murai Éva szerk.: Parasitologia Hungarica 22. (Budapest, 1989)

In Hungary we have rather numerous data on flies developing in cattle and sheep droppings (PAPP 1971, PAPP and GARZÓ 1985; PAPP 1985), in pig manure (PApp 1974) and in horse droppings (PAPP 1974). So far dipterological studies in poultry houses have not been carried cut, although fly problems have been very acute in high density poultry systems in our country as well as all over the world (see AXTELL 1985). For example, the direct costs of fly control of poultry per year in the USA was estimated at least at S$ 40 million (ANONYMOUS 1979). The fly problem in general is most serious in caged-layer houses with accumulated manure under the cages. The object of the present project is to reveal the species composition and breeding sites of flies in poultry houses in Hungary. The first dipterological studies were carried out in a caged-layer house. B 1 2 3 4 3 1 F R + Fig. 1. A schematic ground-plan of the caged-layer house (B: back, F: front, L: left side, R: right side, 1-4: No. of the blocks of cages, fc: feed container)