UK seasonal pest calendar
Pests follow weather and building use, not the calendar exactly. This is a practical guide to what we see most often in London, Liverpool and similar UK towns.
Spring
Wasp queens start nests. Ants become visible on patios. Mice that wintered in lofts show more in kitchens.
Summer
Wasp nests peak. Flying ants swarm. Flies and cluster flies around farms and bins increase. Bed bug reports rise with travel.
Autumn
Rodents move indoors as nights cool. Squirrels test lofts. Birds look for roosts on ledges.
Winter
Indoor insects in heated buildings continue. Outdoor wasp nests die back. It is a good time for proofing.
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