Once the weather starts to turn cold, the adult flies gather in clusters in warm buildings for hibernation. Called cluster flies, they overwinter in attics and wall voids. This species very commonly gathers in groups one-by-one throughout buildings in North America. Once the weather turns and they try to get back outside, these household nuisances flee from their hibernation, becoming a bother to home and business owners alike. Birch Fumigators offers expert cluster fly control.
Cluster flies overlap their wings over their abdomens while house flies don’t, which is one way to determine if the fly you saw in your kitchen is the first sign of a bigger problem. Having cluster flies in your home can be very problematic. While they aren’t as hazardous as other pest infestations, cluster flies wake up from hibernation as large swarms that can fill your home.
To prevent problems associated with such swarms, Birch Fumigators can treat the exterior walls of your home or building. We also recommend an attic fog in the spring. This application is a preventative measure that should be completed prior to an infestation. If you already have a cluster fly problem in your home, be sure to call the expert team at Birch Fumigators.