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Can you get rid of a cluster fly infestation?

Cluster fly infestation

Now that spring has sprung and the promise of warmer days is right around the corner, you may wonder what pesky critters come with it. One of the most common pests around this time of year is the dreaded cluster fly. While they don’t tend to enter homes or businesses until summer is over, the warm weather is perfect mating season.

These unwanted guests can quickly become a nuisance in homes and businesses, gathering in large numbers and creating an irritating buzzing noise. But fear not – we can reveal tried and tested methods to prevent cluster flies from entering your property long before they are ready to hibernate.

Some of the most effective at-home methods for removing cluster flies on your property include vacuuming dead flies, placing sticky traps in hot-spot areas and sealing all possible entry points. If the fly problem is beyond your control, you should seek the support of a pest control specialist.

At Project Multi Pest, we specialise in natural and humane pest control removal that is safe for humans and pets. Our trained team of technicians and animals are dedicated to ethically and safely removing unwanted pests from your premises.

In this blog, we help you identify cluster flies in your home or business and provide pest-expert tips on eradicating them from unwanted areas. Keep reading to learn more about these unwelcome visitors, or contact PMP today to discuss your pest control needs.

How do you know if you have a cluster fly infestation?

Identifying an infestation is crucial for determining the right course of action to get rid of the problem and restore peace to your property. It is usually quite easy to spot an infestation once the flies have entered your property, as the incessant buzzing, large gatherings, and messy trails are difficult to ignore.

While cluster flies can appear similar to your typical house fly, they are, in fact, a little bigger (measuring around 8mm-10mm). They are primarily dark grey in colour and feature a silver and black checkered pattern on their body. They also tend to move more lazily than house flies and accumulate in large groups – typically around window frames.

If the flies have found a quieter place to hibernate, such as a garage or attic, you may need to take a more thorough look to identify an infestation.

How long does a cluster fly infestation last?

Spring and summer are when cluster flies are most active and spend their time outside eating plants and laying eggs; they are unlikely to come into your home or business during this time.

You’ll find that cluster flies enter homes during the late summer and early autumn to prepare for the winter. They become far less active once inside your property but will likely stay until the warm season returns, meaning you can expect infestations to last months at a time.

Will cluster flies keep coming back?

While cluster flies don’t typically lay eggs in your home, they may continue to return year after year to seek shelter during the cooler months unless you take the necessary steps to prevent them from doing so.

How to get rid of cluster flies

If you’re fed up with having these unwanted visitors return to your property every year, there are measures you can take to eliminate cluster flies in your home or business.

The first step is to find the hibernation spots where cluster flies gather – typically clean spaces that offer warmth and protection from the outside elements. Once you have found the infestation, the next steps involve removing the nuisance flies and preventing them from returning.

Removing cluster flies is pretty straightforward. Some effective methods include vacuuming live or dead flies, using sticky fly strips or, if the problem is beyond your control, enlisting the help of pest control experts.

Since the flies won’t lay eggs in your home, if you block all entry points, they will eventually die off and be unable to return. This involves sealing any gaps around window sills, door frames and pipes.

Getting rid of cluster flies in the attic

Attics tend to be a prime spot for many pest problems due to their easy access and quiet shelter from the outside world. They tend to have small gaps around the pipes and eaves, making it easy for cluster flies to get in and nest.

If you’ve noticed a cluster of attic flies hanging around, then it’s a good idea to take swift action. Vacuuming is an affordable and effective way to quickly remove cluster flies at home. You can then prevent them from returning by sealing any gaps in the walls or eaves, which has the added bonus of reducing drafts throughout your home.

Getting rid of cluster flies in the garage

Garages are often quiet, undisturbed spaces offering easy access and shelter, making them the ideal hibernation spot in winter. It can be annoying to find cluster flies in your garage, but with the right steps, you can effectively remove them and prevent them from returning in the future.

Many garages don’t have plaster and paint covering the walls or sturdy window frames, making it easier for flies to get in through tiny cracks and holes. Placing mesh fly screens and sticky traps around possible entry points can help you catch any flies that manage to sneak in.

Of course, blocking off all entry points is the most effective way to prevent an infestation from happening in the first place.

Getting rid of cluster flies in a static caravan

Similarly to attics and garages, static caravans offer cluster flies a warm, undisturbed space to hibernate during the cooler months. Since many people don’t use caravans during the winter, it may take longer to notice an infestation if you have one. Windows, doors, vents and pipes are common places where flies can easily enter through small gaps.

If you notice a cluster fly problem in your static caravan, taking steps similar to the ones mentioned above can significantly reduce the infestation. Sealing any possible gaps around the caravan will help reduce the risk of infestation, and remember to always close windows and doors properly if you are leaving your caravan unoccupied during the winter.

Checking your caravan regularly for signs of a cluster fly problem can make life much easier when you next want to go on holiday!

When to call pest control

While cluster flies are more of a household nuisance than a serious health concern, their presence isn’t often welcomed. Most infestations are easily controlled by taking at-home measures like the ones mentioned above.

However, if you’ve been finding many dead cluster flies scattered about your property, or you feel the problem has gotten out of hand, then it may be time for professional intervention.

Contact PMP for professional fly control

At Project Multi Pest, we can ensure a swift and effective solution to rid your home or business of an irritating fly infestation.

While we have many effective fly control methods that can be selected based on your requirements, we typically recommend our insecticide treatments. They leave a residual layer that prevents flies from returning – which is often the issue with cluster flies. We use professional-grade chemicals that are completely safe for humans and pets and will offer advice around preventive measures tailored to your property.

Get in touch today for your pest control quote.

Frequently asked questions about getting rid of cluster flies

If you’re still itching for more information about these nuisance pests, please look at some of our most commonly asked questions below or contact us today with your enquiry. We’ll be more than happy to answer your questions.

Do dead flies attract more flies?

In some instances, dead flies can actually attract more flies to the area. While this can be useful for attracting more flies to a fly trap, it isn’t always effective.

Can you permanently get rid of cluster flies?

Insecticides are one of the most effective ways to kill cluster flies and significantly reduce their chance of returning. They leave a residual layer, which means the flies will be less likely to return in the future. Combining insecticides with preventative measures, like blocking entry points, is your best possibility of permanently ridding your home or workplace of cluster flies.

What are cluster flies attracted to?

Unlike many other pests, cluster flies aren’t typically attracted to food spillages and messy areas. Instead, they are attracted to warm places that offer shelter and protection during winter, such as garages and attics. If you’re looking for a simple and effective solution that you can easily do yourself, then placing sticky strips in these hot spots will help you catch cluster flies in larger quantities.

Picture of Matthew Blackwell

Matthew Blackwell

Matt is an experienced and professional pest control technician and falconer serving London and Kent.

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About Project Multi Pest
PMP is an experienced pest control company serving the London and Kent areas. It’s owned and operated by Matthew Blackwell. For pest control advice please call or use our website contact form.

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