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The British Pest Calendar

At Confirm A Kill, we are kept nice and busy all year round by a wide variety of pests. Some pests prefer warm weather; others may become an issue in colder months as they seek warmth and shelter. It’s therefore important to understand which pests to look out for at different times of the year so you can quickly nip any infestations in the bud. Below you will find a month by month pest calendar, so you know what you need to be watching out for throughout the year.

The British Pest Calendar

Pest Control Calendar


The start of a new year, January is one of the quieter months for the majority of pests. Rats and Mice are the most commonly reported pests during January as they will be seeking out warm, dry environments to shelter from the winter weather. Cockroaches, which are typically a summer pest, may also be an issue as central heating provides an optimal year-round temperature for them.


Weather-wise February is very similar to January, and as such, the prevalent pests are mostly the same. If it’s a mild winter, and temperatures begin to climb early, then you may start to see some nesting Birds and insects, such as Ants, making a premature appearance.


Generally, the variety of pests is still fairly limited as we head into March. Nesting Birds should become a more common sight, and they will now be a feature through to late summer.

More and more insects will start to emerge, especially towards the end of the month.

Moths have become much more common in recent years. As the climate changes, the warmer temperatures provide a better climate for moths to thrive. Clothes Moths like dark, warm environments and enjoy munching through natural fibres such as wool and cashmere.


Rats, Mice, Cockroaches and Ants to all common during April. This month also sees Flies, Wasps and Bees becoming an issue. Bees and Wasps, in particular, may be looking for new homes. You should, therefore, check your lofts, garages and sheds for any signs of nests being built.


The average temperature is starting to rise, and by May, we are starting to see many common pests on a regular basis. Wasps, Bees and Flies will all be around in much greater numbers. Cockroaches, Ants, Mice and Rats will also be around in moderate numbers.


Depending on the temperatures, many summer pests will now be hitting moderate levels. Bees, Wasps, Ants and Flies are all very common call-outs for pest control companies at this time of the year. You can also expect Fleas and Bedbugs to start making an unwelcome appearance.


We are halfway through our Pest Calendar and in July many summer pests are nearing or at the peak in terms of numbers. Bed Bugs, Fleas, Cockroaches, Flies, Ants, Bees and Wasps are all very common problems at this time of year. To minimise your risks of an infestation ensure that no food is left out and if you can, remove pet food bowls when not in use. Rubbish should also be carefully disposed of. Ensure bin lids are firmly down and rubbish bags are well sealed.


Fly numbers will begin to drop as the month progresses, but you can expect high to moderate levels until September. Wasps and Ants are the biggest issues at this time of year, but all summer pests are still at or close to their peak levels.


As the summer draws to a close, the majority of insect pest levels start to drop. Wasps are still an issue and may become more aggressive as most have finished their duties to the nest by this point. Late summer and early Autumn also heralds that start of Spider season which lasts until January.


Most insects will now be finished until the next summer, with the exception of Wasps who will be becoming increasingly desperate in the hunt for a sugary hit. Moles, Rats and Mice will all be more prevalent at this time of year as the temperatures drop they will again be looking for a nice shelter for the winter.


Wasps should finally be finished for another year, and all other summer insects should also be done until summer. Spiders are now at their peak. Mice, Bird and Rat issues are becoming far more common as the cold weather begins to bite.


The end of the year and the vast majority of pests are again fairly quiet. Rats, Mice and Cockroach issues can often show up in December as the unwelcome guests begin to make themselves known by leaving droppings, urine stains or chewing through cables.

The British Pest Calendar Summary

As you can see from our pest calendar, although we have some quieter months, there are always pest issues that need to be dealt with. Whether you are a homeowner with a one-off problem or a business requiring year-round pest protection, we have a solution.

For more details about the services, Confirm A Kill provides, please get in touch.

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What a nice man ! Fast acting pesticide within 4 hours all wasps were gone. He explained all the relevant safety information etc. Don't be ripped off for lots of money call this guy !! Thanks Again xx

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