抄録
Entomophthora muscae was introduced into model populations of house flies in an experimental windowless poultry house. Four hundred to 500 healthy flies were reared in 50 m3 poultry rooms with 10 and 50 flies respectively infected with E. muscae. When the living infected flies were released into the room, they died within 7 days and the disease prevailed on non-injected flies with a peak of mortality about 18 days after the introduction. More than 90% of the initially healthy flies were killed by the disease including secondary infection over a period of 33 days. When conidia-discharging cadavers were attached to the inside of the room, the non-injected flies started to die 6 days after introduction of the cadavers and about 90% of the flies were killed including secondary infection within 20 days. Thus, epizootics of E. muscae could be induced by the introduction of living infected flies or fresh fly cadavers in a practical scale poultry house.
