Wyevale added wasp control products peaked last week with an increase of 180 per cent year on year.
Duncan Mclean, buyer for garden nourish and control at Wyevale Garden Centres, said: "It is definitely a bumper year for insects, and homeowners can expect the ‘invasion’ to continue for the next few weeks.
"It’s very likely you will see plenty of wasps around, as they have become more active recently. People should be aware of them, although they are part of the balance of nature, as the temperature drops, wasps become more sluggish and aggressive.
"As for garden spiders, we have also spotted more numbers of these, not great news for the arachnophobes amongst us, but buoyant numbers of the eight-legged creatures are great for pest consumption in gardens across the country."