Flies In Attic Winter

By instinct they seek shelter away from the elements such as in the fall when it gets cold.

Flies in attic winter.

Those large flies in your home in winter are probably cluster flies which overwinter in the protected areas between the inside and outside walls of your home or in the attic or basement. Unlike more familiar blow flies such as the bluebottle genus phormia they do not present a health hazard because they do not lay eggs in human food. Flies are an expected nuisance in the spring and summer but some homeowners will find themselves in the midst of an infestation in cold winter months. Cluster or attic flies are the genus pollenia in the blowfly family calliphoridae.

Thus the common name they have of attic flies. August 06 2020. Attic flies are especially abundant this spring. By donald lewis department of entomology.

Most commonly they move from the ground to your attic for the winter when it gets cold. Cluster fly larvae develop inside earthworms living in the ground outside of homes. Although flies can be a nuisance at most times of the year cluster flies tend to become most problematic as autumn turns into winter. Entry entering living spaces by way of electrical outlets or baseboards the pests take shelter in attics and walls to hibernate awaiting the arrival of warmer spring weather.

These eggs hatch throughout the winter and the little flies have nowhere to go but the home. And the easiest entrance is usually through external gaps leading to your attic. Overwintering insects generally stay in secluded areas until the warming and lengthening days of spring pull them from hiding. Attic flies which are also known as cluster flies are insects that often migrate into homes in the fall where they hibernate for the cooler fall and winter months one of the best tips for getting rid of attic flies is to keep them from entering the house in the first place as trying to eliminate them after they are in hibernation can be difficult.

These flies are known as cluster flies a name that. They tend to travel in huge swarms of thousands of flies. Naturally your house is warmer. These are not the same as the blue bottles that buzz hard against the windows in the warmer weather or the house flies and smaller flies that are active in summer too.

Along the roof or attic. Cluster flies cluster. Attic flies common this winter. Cluster flies prefer warm areas so homeowners often find them flying around houses on sunny days in the winter and late fall months.

Fox last modified date. Flies that gather in roofs around windows and on walls inside in the autumn and winter are called cluster flies also known as attic flies. Some species of flies such as face and cluster flies lay eggs in the cracks and crevasses of a home. Last summer s abundant rainfall was favorable for development of cluster flies.

The result has been a greater than normal abundance of these large black pesky flies in houses this winter.