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UK Households Urged to Close Windows at Dusk for Four Weeks as Spider Season Begins

Experts say sealing entry points, stepping up cleaning and trying low-cost natural deterrents can reduce encounters as roaming males seek warmth indoors and NHS guidance notes bites are uncommon.

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Overview

  • Local outlets echo advice to shut windows from around 7pm through the next month to limit male house spiders and false widows entering at dusk.
  • Home and pest specialists recommend inspecting and sealing gaps around doors, windows and vents using weather stripping or sealant to block entry.
  • Suggested deterrents include a vinegar–washing-up liquid spray with thyme oil, citrus scents such as orange peel, peppermint products and even cooled peppermint tea bags placed at common entry spots.
  • Regular decluttering, dusting and vacuuming—especially in dark corners, behind furniture and around boxes—helps remove webs, hiding places and food sources, and turning off unnecessary lights can reduce attraction.
  • Reports highlight false widow sightings but reiterate NHS guidance that UK spider bites are rare and usually mild, with humane removal advised and medical care sought only if symptoms worsen.