Have you been noticing more flies than usual during this winter? Flies usually travel to sun-exposed sides of buildings in the late summer and enter your home through any available crack or opening. They survive winter in the adult stage by taking shelter indoor and are in a suspended state of development known as diapause ; they neither feed nor reproduce so they will either leave on their own or die without reproducing. When it starts to become warmer outside, these flies will come out from hiding behind walls and fly about your home. The cluster flies don’t develop on garbage rather they are parasites of earthworms. Cluster fly control can be difficult because it can take a lot of work to prevent them from entering a home.
https://gogreenpestcontrol.ca/cluster-flies-sn…ing-it-your-home/
gogreenpestcontrol.ca insectandrodentexterminators.com Delta Ladner Tsawwassen B.C., Randy BsF CPA RPF
https://www.linkedin.com/pulse/cluster-flies-snow-birding-your-home-randy-bilesky/?published=t