This is the same family to which bottle or blow flies belong. HOW TO TREAT CLUSTER FLIES ON WINDOWS ^ During the winter, cluster flies can become a real problem as they migrate into living spaces. The thorax of an adult cluster … Seeking shelter from the frost and wind, they come indoors and settle down for the winter. Here are some things that you can do to help prevent cluster fly infestation: Treatment includes a residual insecticide to window frames, door frames, cracks, crevices, soffit and fascia on the exterior, window frames, door frames, cracks, crevices, baseboards and attics on the interior. The following information describes how to get rid of cluster flies. These pests don't pose a risk to homeowners, but become a nuisance when their numbers increase and they find their way inside. To help manage the problem, spray around the window frame with FS MP AEROSOL. Getting rid of cluster flies. Formula ‘P’ Cluster Fly Killer is a powerful permethrin powder specifically developed to have a rapid knockdown effect on cluster fly infestations. Cluster flies habits mean that they are no real risk to human health like most common flies but they are a nuisance. Cluster flies come from the ‘Calliphoridae’ family. 1-2 puffs at a time will be plenty. Insect Control: How to Get Rid of Cluster Flies. To get rid of cluster flies follow these steps: Release NO Bugs Super Bug Bomb or NO Bugs Super Fumigator inside house and buildings to kill cluster flies inside. Insect Control: How to Get Rid of Cluster Flies. Applying a residual insecticide to alighting surfaces including window frames will help maintain cluster fly control after an initial fumigation treatment. Pest Expert Formula ‘C+’ Cluster … Clustering flies can enter your home through the tiniest cracks around door and window frames, but also through any other small unsealed opening. Although flies can be a nuisance at most times of the year, cluster flies tend to become most problematic as autumn turns into winter. During mid to late August, Cluster Flies begin to migrate indoors, through window cracks and door frames, looking for a warm place to overwinter. ... window frames etc., hundreds of flies in a loft are a big nuisance. Length: Adults measure 8 to 10 millimeters. Prevention in both the spring and fall is the best approach to keep cluster flies from entering your home or building. We offer a selection of cluster fly sprays and powders for this purpose. Cluster flies are found throughout the UK, but predominantly in rural areas. For controlling cluster flies within the home there are a range of products, including window cluster fly traps, sprays, smokes etc. They take shelter in the attic or higher up floors rather than basements and floors closer to the foundation if you have a multiple-story house. Cluster flies aka attic flies get their name from clustering together in large numbers over the winter months. ; Spray interior of buildings with NO Bugs Indoor or NO Bugs Super for long term bug control. Get rid of a cluster fly infestation fast. Around door and window frames On the underside of lamps In the corners of rooms where cluster flies have been spotted In wall voids behind outlets In cracks and crevices around the home Do not apply too much dust at once or the dust will not be effective as cluster flies will avoid piles of dust. Body: Light and dark gray-checkered abdomens. You can try and limit access to your property by filling any cracks and crevices in walls, window or door frames with caulking. They are known to give off a sickly odour and they also have a big effect on earthworms around your home. Spray exterior of building, under eaves, around window frames… We live in a barn conversion and also get cluster flies, but only in two of the bedrooms which face west. A Cluster fly is very much similar to a house fly. Kill cluster flies with the best cluster fly treatment products including smoke bombs and sprays. As Davesnave so rightly points out the joys of living in the country. Long-lasting Cluster Fly Control!