Somerset residents are being encouraged to check their gardens for signs of unwanted visitors this summer.
The British Pest Control Association (BPCA) has offered advice for spotting early signs of pest activity during garden tidy-ups, with a focus on keeping both homes and wildlife safe.
Niall Gallagher, technical manager at the BPCA, said: "British wildlife is diverse and it can be really exciting to see garden birds and insects sharing your outdoor space.
"But pest activity in gardens isn’t uncommon and it’s important to understand what the signs are, what the risks might be, and when you might need to call for help from a BPCA member."
While gardens can be valuable habitats for pollinators like bees and butterflies, pests such as rats and wasps can pose risks to people and property if left unchecked.
In spring, wasps build nests which, by late summer, can become a colony of thousands.
Mr Gallagher said: "Wasp stings can cause anaphylaxis, an allergic reaction that can be potentially fatal.
"If anyone is stung by a wasp and anaphylaxis is suspected, dial 999 and ask for an ambulance."
Nests located away from areas of human activity are usually best left undisturbed, as wasps help control garden pests like aphids.
However, nests near doors, pathways, sheds, or seating areas may need professional removal - especially if someone in the household is allergic to stings.
Mosquitoes are another seasonal nuisance, with gardens providing ideal breeding grounds in standing water.
The BPCA recommends emptying and cleaning water butts, bird baths, watering cans, and similar items to prevent mosquitoes from laying eggs.
Rodent activity is another concern, with rats and mice drawn to shelter and food in untidy gardens.
Common signs include gnawed packaging, droppings, and burrows in soil.
The BPCA advises removing potential nesting sites by keeping gardens tidy, cutting back overgrown areas, and clearing away wood or debris piles.
Bird feeders are a particular attractant for rodents, with the BPCA recommending avoiding the use of feeders entirely, or at least using a feeder basket if possible, to catch any cast-off seed.
In urban areas, bird feed should be taken indoors at dusk, when rodents are most active.
Mr Gallagher said: "Rats and mice can spread diseases to people and pets, and they breed very quickly, so if you suspect rodent activity in the garden, it’s extremely important to seek advice sooner rather than later."
He also addressed the presence of ants, which are typically not a concern unless they start entering the house.
To help prevent pest issues, BPCA advises residents to ensure all household waste is securely bagged and placed in a lidded bin; clean and contain all recycling in closed bins; cut back long grass or overgrown areas that could serve as rodent pathways; seal gaps around cables, pipes, doors, and windows using wire wool and cement; clear debris and spilled seed from around bird feeders regularly; and remove wood piles and garden clippings and monitor compost heaps.
Mr Gallagher said: "We support a prevention rather than cure approach and advise anyone with a pest issue, or who is considering proofing for their home, to consult a BPCA member.
"It’s the safest way to deal with pests like wasps and rats and gives householders peace of mind that the advice they receive is from someone who is trained, experienced and has a detailed understanding of relevant legislation."
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