Overview

• Peak activity runs from September into early November, when spiders seek warmth indoors through tiny gaps and cracks.
• Experts advise a 50:50 mix of white vinegar and water, sprayed on patios, paths, door frames and window ledges to discourage entry.
• The strong acetic acid smell is reported to overwhelm spiders’ sensory receptors, prompting them to avoid treated areas.
• Use caution on varnished or polished surfaces that vinegar can dull, though the diluted spray is described as non-toxic for indoor use.
• Supplemental steps include tidying gardens, moving or storing outdoor furniture, and planting strong-scented herbs like basil, rosemary and thyme, with vinegar available for as little as 35p.