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Cluster Flies

Cluster Flies (Pollenia rudis)

owl-pest-control-Cluster-Flies

Appearance:

Cluster Flies are large (1/4" - 3/8") dark gray to black flies similar to houseflies in appearance, but have golden hairs on their thoraxes. To differentiate between houseflies and cluster flies, examine the wings of the fly at rest. Cluster flies' wings overlap like a pair of scissors, while houseflies' wings do not.

Habits:

In the spring, cluster flies lay their eggs in soil near earthworms. After they hatch into larvae, or maggots, the flies find earthworms to crawl into, feed on, and complete the larva part of their lifecycle. After this, they enter the soil to pupate, after which they have completed the transition to adulthood. During the summer months, adults feed on fruit juices and flower nectar.

As summer wears on and daylight hours shorten, cluster flies seek protection from the impending cold weather. Colder temperatures cause the flies to crawl upwards, and in this way they enter cracks and openings in buildings. Gaps under eaves and siding are common places for cluster flies to enter. They will remain in buildings until early spring, but they will return to roof spaces previously occupied the following winter so re-infestation can be expected.

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Cluster Flies infestation in Attic.

Buildings located next to large lawns or meadows are generally most attractive to these flies, whereas buildings next to large trees rarely ever have infestations. Cluster Flies can also be seen basking / resting on south facing walls of buildings, especially if they are painted white, as the light colour will reflect the heat.

Threats:

Cluster flies become a nuisance when they gain entry homes seeking shelter from cold weather. They do not complete any of their lifecycle indoors, since they are dependent on earthworms and soil to evolve.

Cluster Flies Prevention:

The best way to control cluster flies is to deny them access to a building, i.e. seal all cracks in siding and eaves, windows, chimneys, air vents, etc.

If cluster flies have already established themselves in your home, there are methods to eradicate them such as vacuuming or fumigation. The issue with fumigant gases is that they are expensive, not residual and new cluster flies can return after the fumes have dissipated.

Get Rid of Cluster Flies with UV lights

thumb-electric-fly-killer-saleCluster Flies are attracted to light and a relatively cheap way to get rid of them is to use an ELECTRIC FLY KILLER machine, with low power consumption. Some customers have given us very good feedback using this solution:

"Just thought I would drop a message to say how happy I am with the zapper. Delivery was great and had it running as soon as I could un-box it. Usually each morning the flys in the attic find their way down inside the house... not today. After running it all night its already managed to collect a great number of flys in the tray. Nothing more satisfying than hearing the buzz go off and knowing its another pest dealt with. I'll be cleaning it before I leave, then keeping it on a timer for 12hrs a day. We're happy to know our holiday home is safe from infestation and look forward to being free of the annoyance. Thank you. Ronan G"

Note: When using an Electric Fly Killer, it is important to remove the dead cluster flies from the catch tray regularly, as excessive build up of flies pilling up in the tray could represent a fire hazard when reaching the level of the electric grid (i.e. sparks).

For full range of Electric Fly Killer machines Click Here

Get Rid of Cluster Flies using Smoke Bombs

smoke generator bomb miniSmoke Generators (or smoke bombs) can kill cluster flies within a few minutes. It is an ideal solution for a quick kill of high number of flies, or if you have several attics or a lot of areas are high up or difficult to reach. Bear in mind that after the fumes have gone (several hours), new flies getting in will not be affected. 

We do stock Mini Smoke Generators for flying insects. Each will treat 120 cubic metres (e.g. L10m x W6m x H2m).

For online purchase, please Click Here

 

Call Owl Pest Control Now Call Owl Pest Control Dublin if you need help on how to get rid of Cluster flies or to arrange a professional cluster fly treatment.

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  • Protecting Homes and Businesses from pests since 1998.
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