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CLUSTER FLY CONTROL

The autumn fly, scientifically known as Musca autumnalis, is a prevalent species of clustering flies. Other notable species include the common cluster fly (Pollenia rudis) and the green cluster fly (Dasyhora caynella). These autumn flies are similar in size and color to house flies, featuring distinct yellow abdomens. As a pest species, they pose significant risks by transmitting diseases to cattle and horses, such as pinkeye and the eyeworm Thelazia rhodesi. Notably, in 2016 and 2018, these flies were linked to transmitting the eyeworm Thelazia gulosa to humans. Cluster flies are infamous for forming groups during hibernation, becoming a major nuisance for homeowners and business owners. To effectively get rid of unwanted pests like these, pest control services are essential since they:

  • Emit a pheromone that attracts more flies

  • Have an unpleasant odor

  • Leave droppings on floors and walls

  • Can squeeze through very small gaps

During the summer, cluster flies thrive outdoors in semi-rural or rural areas, laying their eggs in the soil. As temperatures drop in late summer or autumn, they seek shelter indoors to hibernate, often finding their way through small openings in walls or roofs. To address this issue, both residential pest control and commercial pest control solutions are vital. If you're searching for affordable pest control or pest control near me, professional insect extermination services can help maintain a pest-free environment.

Cluster flies inside the loft space of an old building

Appearance

Cluster flies are dark greyish in color, about 8 mm long, and have yellowish hairs on their backs. They have overlapping wings and are slower moving than other common house flies.

Behavior

Cluster flies are not known to bite or transmit diseases. They are attracted to warm, protected areas, such as chimneys, and can enter homes through small cracks or openings. These sluggish fliers don't buzz.

Life Cycle

Cluster flies undergo complete metamorphosis, with eggs hatching into larvae, then pupating, and finally emerging as adults. Understanding their life cycle is crucial for effective pest control and insect extermination strategies.

Hibernation

In autumn, cluster flies gather in large numbers to hibernate in upper rooms or roof spaces of houses. They often choose a nesting site and pass on that location to the next generation, making pest prevention efforts more challenging.

Location

Cluster flies are found throughout the UK but are more common in rural areas. For both residential pest control and commercial pest control needs, knowing their preferred habitats can aid in targeted treatments.

Prevention

It's difficult to entirely prevent cluster flies from entering a property. Re-pointing gaps around window frames and sealing obvious entry points may help, but it's not possible to stop all flies from getting in. A pest control technician can use more effective insecticides and equipment for thorough insect extermination.

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