srjalsSRJALSSRJALS2788-938610.47310/srjals.2025.v05i01.001Role of Housefly (Musca domestica) in the Transmission of Entamoeba histolytica Cysts and Evaluation of Cyromazine as a Biocontrol AgentAlla A.Al HilfySuraS. AlwanDepartment of General Sciences / College of Basic Education/ Missan UniversityThis study included the investigation of the role of an insect housefly Musca domestica in the transport of Entamoeba histolytica parasite that cause diarrhea and Evaluation of cyromazine as a Biocontrol Agent. The percentage of transmission for the parasite was examining through exposed The samples to the stool of people injured, and then samples from the water washing insects were tested individually to determine the percentage of transfer, which was (71.11)%. On the other hand, cyromazine concentrations affected the life stages of the house fly, where the lowest mortality rate was in the egg stage at a concentration of 0.1% g/L after 24 and 72 hours was 12.93% and 55.62%, respectively. The highest mortality rate at a concentration of 0.4% g/L after 24 and 72 hours was 35.33% and 79.67%, respectively. The lowest kill rate of first stage larvae at a concentration of 0.1% g/l after 24 and 72 hours was 12.18% and 29.73%, respectively. The highest mortality rate at a concentration of 0.4% g/l after 24 and 72 hours was 25.32% and 71.78%, respectively.