A four-month cross-sectional study found five species of parasitoids parasitizing
puparia of filth flies breeding at the Taman Beringin landfill in Kepong and a
poultry farm in Sungai Pelek, Sepang, Selangor. Effect of monthly rainfalls
towards density of flies and percentage of parasitoids emerging from collected
puparia were also analyzed. Spalangia sp. was the most common, consisting of
Spalangia endius Walker, S. cameroni Perkins and S. gemina Boucek. Other
parasitoids collected were Pachycrepoideus vindemmiae Rondani and
Exoristobia phillipinensis Ashmead. The parasitized fly hosts were Musca
domestica Linn. and Chrysomya megacephala Fabricius. S. endius was the
most common parasitoid attacking M. domestica at both locations. M. domestica
was the most common fly found at the Sg. Pelek poultry farm whereas C.
megacephala was the most numerous at the Taman Beringin landfill. During
heavy rainfall month of November 2003, density of flies were high whereas the
emerging parasitoids were low at both landfill and poultry farm. The present
study revealed the endemic presence of parasitoids especially S. endius in
both poultry farm and garbage landfill and the potential of the parasitoid
species in fly control in Malaysia