Wasps 'more aggressive' during September as pest expert explains 'biggest mistake'

NewsUK NewsGardeningJohn Whiteley-Wilkson said behaviour changed significantly05:11, 05 Sep 2026Homeowners are being warned to take extra care around wasps this September, with a pest control expert explaining why the insects become noticeably more aggressive as summer comes to an end. While wasps are a common sight throughout the warmer months, an expert said their behaviour changed significantly during September as colonies reach the end of their natural life cycle.‌Earlier in the summer, worker wasps spend much of their time feeding larvae inside the nest. In return, the larvae produce a sugary substance that provides the workers with food.‌As the season draws to a close, the queen stops laying eggs and the number of larvae rapidly declines, leaving thousands of worker wasps searching e