The change in weather that could trigger a late summer mosquito surge

After weeks of hot, dry weather, the return of rain might be good news for our gardens. Unfortunately, it could also be good news for mosquitoes.

As showers return while temperatures remain relatively warm, conditions could become increasingly favourable for mosquitoes, with rainfall creating the standing water they need to breed.

And with warmer spells still possible as we head towards autumn, packing away the mosquito protection could be premature.

Angharad James, Brand Manager at SBM Life Science, UK distributor of mosquito and midge protection brand Thermacell®, explains why mosquito season isn't necessarily over yet and the five places they could be breeding in your garden after the rain.

Why rain could mean more mosquitoes

We tend to associate mosquitoes with scorching summer days, but heat is only part of the picture.

Mosquitoes need water to complete their life cycle, laying their eggs in or around water before the larvae develop. Following prolonged dry weather, rainfall can suddenly create plenty of new breeding opportunities.

Angharad said: “When the weather starts to cool down, most of us assume mosquitoes will disappear with the heat, but warm, wet conditions can actually work in their favour.

“Rain can leave small pockets of standing water all over the garden, while late-summer temperatures can remain warm enough for mosquitoes to stay active.

“If we then get another warmer spell following the rain, you could have the perfect combination of water and warmth. So while summer might be winding down, mosquito season certainly isn't over yet.”

Five places mosquitoes could be breeding after the rain

You don't need a pond or water feature to attract mosquitoes. Everyday items can collect enough rainwater to create potential breeding spots, often without you even noticing.

Angharad shares five places to check after the next downpour.

1.     Plant pots and saucers

“The little pool of water underneath a patio pot is easy to ignore, but standing water is exactly what you're looking to eliminate.

“Check plant pots and saucers after it rains and tip out any water that has collected. Pay particular attention to pots tucked away in sheltered corners where water is less likely to evaporate quickly.”

2.    Buckets and watering cans

"That forgotten bucket at the bottom of the garden could quickly fill during a downpour."

“Store buckets, watering cans and empty plant pots upside down or undercover when you're not using them. It’s such a simple job, but it stops them quietly filling with rainwater.”

3.    Paddling pools and outdoor toys

"Paddling pools, wheelbarrows and children's toys can all trap rainwater, particularly when they're left outside throughout the summer.

"Empty them after rain and turn smaller items upside down where possible rather than allowing water to sit undisturbed."

4.   Gutters and drains

"Don't forget to look up. Leaves and debris can block gutters and prevent water from draining properly, leaving stagnant water behind.

“Keeping gutters and drains clear is good garden maintenance anyway, but it also removes another potential source of standing water around the home.”

5.    Water butts

"There's no need to sacrifice the rainwater you've carefully collected, but make sure mosquitoes can't access it.

“Keep water butts properly covered with a secure lid. Fine mesh can also help prevent mosquitoes reaching the water while still allowing you to collect rainfall.”

Don't put the mosquito protection away just yet

As summer draws to a close, the temptation might be to start packing away the summer essentials. But mosquito protection shouldn't be one of them.

Mosquitoes can remain active while conditions are suitable, particularly around dawn and dusk, just when many of us are enjoying the final BBQs, drinks on the patio and evenings outdoors.

Angharad added: “Late summer can be one of the nicest times to enjoy the garden. The evenings are still warm, but we're often past the really intense daytime heat.

“The key is not to wait until you're being bitten to think about protection. Remove standing water where you can, keep the areas around patios and seating spaces tidy and set up mosquito protection before you settle down outside.

“Summer isn't over yet, and neither is mosquito season.”

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For more information about Thermacell® and to explore the full product range, visit www.seezon.co.uk/brand/thermacell/.

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Editors notes

For over 25 years, Thermacell® has been helping people enjoy the outdoors without the irritation of mosquitoes and midges. Trusted by millions worldwide, Thermacell® is a leading brand in portable, heat-activated mosquito protection, offering an effective, scent-free and contact-free alternative to traditional repellents such as sprays or candles. Using innovative technology, Thermacell® devices create a protective zone of up to 20m² that helps keep biting insects away, including invasive species such as the Asian tiger mosquito. Compact, convenient and easy to use, the range includes solutions for every outdoor setting, from garden and patios to camping and adventure travel. Designed for comfort and proven performance, Thermacell® delivers reliable, long-lasting protection so users can make the most of their time outdoors.