Association of Escherichia coli with the prevalence of flies population west of Baghdad

Association of Escherichia coli   with the prevalence of flies population west of Baghdad

  Mass release of house fly Musca domestica ( L.) and stable fly Stomoxys calcitrans (L.) produced by manure piles accumulated nearby horse stables and dairy farm village in Abu-Craib provide continuous threat to inhabitants west of Baghdad. Timing of flies mass release in association with the presence of  E. coli and bacteria in general in manure piles was examined at these locations. Experimental result indicated that flies survived during cold months of December and January in form of larvae in manure piles where temperature around 15º C. Once the larval population started to increase by the second week of February, the amount of E. coli in manure piles was up to 80x10⁶  CFU / ml manure suspension. Later the concentration of E coli dropped down to 36 x10³  CFU / ml. when larval population reached to a maximum number by the first week of May. Similar trend was observed with the proportion of E. coli to general bacteria present in manure piles where the percent decreased from 100% to 28% at the maximum number of larval population. This may suggest the consumption of E. coli and the role of bacteria in prevalence of flies population.