Households across the UK are being advised to close their windows after 7pm during September as the annual spider season gets underway. The period typically begins at the end of August and lasts until mid-October or even November, when male spiders reach adulthood and search for a mate.
Spiders tend to move indoors at dusk, entering through windows, doors and drain pipes. Experts suggest that keeping windows open longer increases the likelihood of spiders finding their way into homes.
Expert advice on sealing entry points
Dr David Gee, a zoology lecturer from the University of Derby, told the BBC: "As a function of global warming - and we're seeing our environment changing - you do find more and more species, not just spiders, but insects and other species, actually moving further north."
Alan Reid, a windows specialist at Art Windows and Doors, advised: "Male house spiders and false widows are on the move, and homes with open windows are at risk of infestation. Now is the time to seal gaps and shut windows before spider season peaks."
Recommended prevention measures
It is also recommended to seal any gaps and cracks around the home. Checking doors, windows and vents for potential entry points and applying weather stripping or sealant can help block access.
Natural deterrents such as peppermint, tea tree or lavender essential oils diluted with water can be sprayed around likely entry points to discourage spiders. Maintaining a clean home through regular dusting and vacuuming also eliminates potential hiding spots and removes food sources.
Spider species of concern
Spiders in the UK do not typically pose a danger to the public, though those who bite can leave allergic reactions in some cases. The noble false widow spider (Steatoda nobilis) is becoming an increasingly frequent presence in British homes.
