15. July 2026

Wasps, Rats and the Truth About Pest Control in Evesham and the Cotswolds This Summer

Wasp Nests & Rats: A Local Pest Controller's Guide to Summer 2026

We’ve been to visit more wasp nests than I can count this month. If you've walked past a bin on a warm evening lately and had a wasp take an unhealthy interest in your sandwich, you already know: it's that time of year again. But after thirty-odd callouts in the last fortnight alone, across everywhere from the orchards outside Evesham to the honey-coloured cottages up towards Broadway and Chipping Campden, I can tell you the pest problem this summer isn't quite what most people expect.

Here's what's actually happening on the ground, what it means for your home or business, and what's worth doing about it before it gets expensive.

Wasp nests: why "it's only small" never lasts

I get this call almost daily right now: "There's a nest, but it's small, can it wait?" I understand the instinct. A wasp nest in May really is about the size of a golf ball, and a single queen pottering around your shed eaves doesn't look like much of a threat. But that's exactly the trap.

By July, that same nest can be roughly the size of a football, and it's not housing dozens of wasps anymore — it can hold anywhere from 3,000 to 10,000 of them by the height of summer. That's not scaremongering, that's just the biology. The queen builds alone through spring, the first workers take over construction from around June, and from mid-July through September the whole thing goes into overdrive. Nationally, wasp callouts have been climbing steeply into the height of summer this year particularly with the heat, and from what we’re seeing around Worcestershire and into the Cotswolds, this patch is no exception.

The Cotswolds throws up its own particular headache here: all that beautiful old stonework, timber-framed barns, thatch and deep eaves are exactly the kind of sheltered, undisturbed cavity a queen wasp is looking for in April. I've pulled nests out of sheds, dry-stone wall cavities, and more than I'd like to admit. Period properties are gorgeous to live in and an absolute gift to a nesting queen.

Why I always tell people to leave it to a professional: when a nest is disturbed, the colony releases an alarm pheromone that recruits the rest of the wasps to defend it, and unlike a bee, a wasp can sting repeatedly. I've seen what happens when someone's had a go with a can of supermarket spray and a broom handle — it rarely ends with the nest gone, and it usually ends with someone getting stung several times over. Professional treatment takes minutes, uses equipment that isn't available over the counter, and deals with the whole colony rather than just upsetting it.

If you've noticed a steady stream of wasps disappearing into the same gap in your fascia board, soffit, or a hole in a wall — that's your nest entrance, even if you can't see the nest itself. Get it looked at while it's still small. It's quicker and a lot less dramatic than an August emergency callout.

Rats: the pest nobody's talking about, but should be

Here's the one that surprises people. Wasps get all the headlines every summer, but this year rat call-outs have actually overtaken wasp nests as the most common pest control job nationally — the first time that's happened on record, with rat callouts climbing roughly 43% year on year. I'd say that tracks with what I'm seeing across Evesham, Pershore and out into the villages.

A few things are driving it. Milder, wetter winters mean fewer rats die off from cold, so populations simply aren't getting the natural knock-back they used to. Around here specifically, we've got a lot of factors that make rural and semi-rural properties particularly attractive to rats: proximity to farmland and orchards, compost heaps, chicken coops, log stores, and older properties with the kind of gaps around utility pipes and airbricks that a rat can squeeze through with ease (and a rat doesn't need much of a gap — if a pencil fits, a rat can usually follow).

The mistake I see most often is people reaching for supermarket traps or bait and assuming that's job done. Rats are neophobic, meaning they're naturally suspicious of anything new in their environment, so a trap that isn't placed and managed properly often just gets ignored while the rats carry on nesting somewhere you can't see. And in a fair few cases now, we're dealing with rodenticide resistance too, which is exactly why the industry's tightened up who's allowed to buy and use these products professionally. Treating the rats without finding and blocking their entry points is really just a temporary win — they, or their offspring, will be back.

If you're hearing scratching in the loft or wall cavities at night, finding smear marks along skirting boards, or noticing gnawing on stored feed or bins, don't wait for it to become a visible infestation. Rats breed fast, and a pair can become a serious problem within a matter of weeks.

What else I'm seeing on my rounds this July

Ants – the warm, dry spells send them foraging much further from the nest, and once they've found a food source in your kitchen they'll lay a pheromone trail for the rest of the colony to follow. Little trails along worktops are the classic sign.
Flies – breeding cycles speed up in the heat, especially around bins, drains, compost and any outdoor food prep areas — a particular headache for the pubs, cafés and farm shops I work with across the Cotswolds.
Mice – not glamorous, but a genuinely common call for us in homes and businesses through the Vale of Evesham this time of year.
Cockroaches and Bed bugs – an infestation can cause a lot of stress and populations can grow rapidly if it's left unchecked.

A local perspective: why the Cotswolds and Vale of Evesham need a different approach

Doing this job across Evesham, Worcester, Pershore, Broadway, Stow-on-the-Wold and the wider Cotswolds and Vale of Evesham teaches you that there's no one-size-fits-all solution. A Cotswold stone farmhouse with a thatched roof needs a completely different survey to a 1980s semi in a Worcester estate, and an orchard or smallholding brings a different set of rodent and insect pressures to a village pub kitchen. Treating a wasp nest in a listed building, for instance, often means being far more careful about access and disturbance than you would with a modern loft.

That's really the difference between a national call centre dispatching whoever's nearest, and a local pest controller who actually knows this ground — who knows which villages sit close to farmland and get more rat pressure, which older properties tend to have the same recurring wasp nesting spots year after year, and who can get to you the same day because we're already working nearby.

What to do right now

Spotted a wasp nest? Don't touch it, don't block the entrance, and don't spray it yourself — get it assessed while it's still small and quick to treat.
Hearing noises in the loft or finding droppings? Don't rely on shop-bought bait alone. Get the entry points found and proofed, not just the immediate problem treated.
Running a food business? Now's the time to tighten up bin management and drain hygiene before flies and wasps turn a minor nuisance into a hygiene rating problem.
Own an older or rural property in the Cotswolds? A seasonal check of eaves, airbricks, and outbuildings costs a lot less than an emergency callout in August.

If you're anywhere across Evesham, Worcestershire, or the Cotswolds and something's been buzzing, scratching, or trailing across your worktop, get in touch. We'd rather come out to a golf-ball-sized nest or a single rat hole than a football-sized colony or a full-blown infestation — and so would you.