You cannot make a property completely wasp-proof, but you can make it less appealing to a queen looking for somewhere to start. Most of the work is done in spring.
Each wasp nest begins with a single queen that has survived winter. In spring she looks for a sheltered, dry, undisturbed spot and starts building. At that stage the nest is tiny, which makes it the ideal moment to stop her. A short walk round the property in April or May, looking at the places below, can prevent a much bigger job in August.
Seal gaps with suitable filler, mesh or timber. Keep sheds closed and tidy, and fit a door seal if there is a gap along the bottom. Where a queen has begun building, a small nest can sometimes be dealt with straightaway before it grows.
Wasps look for sugar and protein. Keep bins lidded and rinsed, clear fallen fruit from lawns and under trees, and do not leave sweet drinks or open food outside. Cover drinks, and check cans before sipping. These steps do not stop a nest being built, but they reduce the number of wasps visiting and cut the chance of being stung while eating outdoors.
Decoy paper nests hung up to put wasps off are sold widely, but evidence for them is thin, and wasps from a nearby colony are not deterred. Sprays, smoke and home remedies are unreliable. Repellent plants may have a mild effect at best. Treat them as a possible extra, not a plan.
The old nest will not be reused, but the sheltered spot that suited the queen may suit another one next year. Once the colony is gone, seal the entrance and the nearby gaps. If the nest was in a wall cavity or loft, it is worth checking each spring that nothing new has started.
Think about the building as well as the garden. Older timber, loose roof tiles and gaps where pipes enter the wall all provide the dry, dark spaces that queens favour. If your property has had a nest in a particular spot before, expect another queen to be interested in it. Repair work done in winter, when no wasps are about, is the easiest time to close those spaces. Fresh filler or mesh put in place before March is worth far more than a spray in July. Once a gap is sealed, check it again after a few weeks, because a determined queen can sometimes push through weak filler. A neighbour with an old shed or an overgrown hedge may also be harbouring nests that spread to your side, so a friendly word can help.
If you find an early nest or want a property checked, call 0113 347 0014 or message us on WhatsApp for a free quote.
In spring, once the weather warms. The queen builds a small starter nest, raises the first workers, and then the colony grows through the summer. Checking sheds, lofts and eaves in April or May lets you spot one before it gets large.
There is little reliable evidence that they do. Wasps from nearby colonies are not clearly put off, and the cost is small but so is the benefit. Sealing gaps and removing food sources are better uses of your time. Nests also tend to be quite different in appearance.
You can reduce the chances by sealing gaps at the eaves, fitting mesh over vents and keeping the loft hatch closed. It is hard to make a loft completely inaccessible, so check it in late spring in case something has started. Little mesh patches over vents do help.
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