Monitoring of Thiamethoxam Resistance in Turkish House Fly Strains, (Diptera: Muscidae).

Background: The house fly, , is vector for pathogens and parasites and causes economic damage to livestock by reducing forage conversion efficiency, negatively impacting weight gain and milk production. It has shown resistance to multiple insecticide classes. The aim of this research was to determine the susceptibility levels of seventeen field strains to thiamethoxam, a neonicotinoid insecticide, in Türkiye.