Cluster Fly

Cluster flies leave their overwintering cracks and crevices in the spring. The females lay their eggs near earthworm burrows, and the larvae then infest the worms. However, the flies are a nuisance, when the adults emerge in the late summer or autumn, they enter houses to hibernate, often in large numbers. They are difficult to eradicate because they prefer to live in inaccessible spaces such as attics and wall cavities. They are often seen on windows of little-used rooms, especially in early spring as the sun warms the south west facing walls of houses. An early spring and late summer treatment by your Barrier Pest Control professional will help greatly reduce the number of flies in and around your home.


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