Flies In Attic Window

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.

Flies in attic window. Windows allow uva light rays to penetrate but block uvb rays which may confuse the visual signals of flies or cause them to miscalculate what they are seeing. Place traps around attic windows to catch flies. Do this in the summer or early fall at the latest. 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.

Spray as best you can around your roof chimney eves ventilation holes etc. Here s more on how to get rid of flies in general. Cluster flies facts identification control latin name. Many flies like cluster flies love the sunlight and warmth which is often why they buzz against windows.

So always make sure your open windows have screens to keep flies from entering. Likewise don t leave doors without screens open for long periods of time. Appearance what do they look like. The thorax of an adult cluster fly is covered in short golden hairs and the wings overlap when at rest.

Spraying the exterior of the house with insecticide can also be effective. Adults measure 8 to 10 millimeters. Cluster fly image licensed under cc. The most effective way to get rid of attic flies is to make sure that they stay outdoors.

Uva rays are long wave rays while uvb rays are shortwave rays. Light and dark gray checkered abdomens. Flies caught in a window may be somewhat disoriented. Sealing cracks in the walls roof and windows is one of the best ways to get rid of these insects.

Remember attic flies want to cluster indoors when it starts to get a lot cooler outdoors.