How to Identify House Fly Infestation

House flies are extremely resilient and are known to survive even harsh winters by hibernating until the first thaw. Large concentrations are often found near food sources both inside and outside of homes. A single house fly can lay 500 eggs, often in garbage, rotting food or in animal feces. Although adult flies have a life expectancy of only 25 days, more than 12 generations can occur over the course of a single summer.