Overview

• Arachnologist Dr Tom Elwood has identified Bristol, Essex, Devon, Kent, London and Norfolk as high-alert areas for early false widow activity.
• Male false widow spiders become active in August and often wander indoors through dusty or poorly maintained window frames while searching for mates.
• Most bites produce mild, wasp sting–like discomfort but some cases have resulted in swelling and secondary infections requiring antibiotics or hospital care.
• Homeowners are urged to keep windows closed, clean glass and frames weekly, seal visible gaps, tidy dark corners and consider vinegar-based sprays to deter web building.
• Researchers led by Dr John Dunbar warn the invasive spiders outcompete native species and can prey on small vertebrates, raising broader ecological concerns.