Homeowners in Wales are being cautioned to be vigilant for signs of wasp infestation as we move into autumn. Rentokil Pest Control highlights that Common and German Wasps pose a risk of infestation during late summer and early autumn. At this time, wasps seek carbohydrates for energy, as the sugary secretions from larvae in the nest become limited due to their maturation. The disruption in the nest’s social order prompts adult wasps to seek alternative carbohydrate sources, potentially bringing them closer to humans. Additionally, mating occurs during this period, leading to the emergence of fertile queens who will initiate the colony’s life cycle for the following year after winter hibernation.
As winter approaches, male and worker wasps typically perish, leaving only fertile queens who survive the cold months. The queens will search for a warm, quiet place to hibernate, such as wall cavities, attics, roof spaces, lofts, sheds, or internal garages. Upon the arrival of spring, the queens lay eggs that hatch into sterile female workers, assisting in nest construction and larvae feeding. Rentokil Pest Control recommends preventive measures to lessen the risk of a wasp infestation, including conducting regular property maintenance, installing fly screens, securing external rubbish bins, and utilising wasp traps.
When suspecting a wasp infestation, be on the lookout for signs such as a high number of wasps in your home or garden, papery nest walls, observable flight paths of worker wasps, and the growth of nest size throughout the summer. Additionally, if you encounter a mature nest on your property, seek professional pest control services to ensure safe and effective treatment. Trying to remove a nest yourself, especially with a sensitivity to stings, can provoke aggressive behaviour from wasps defending their nest. For those wishing to handle nest removal independently, autumn or winter with appropriate protective gear is advised. It is recommended to treat the nest and nesting wasps rather than solely removing the nest. Mature nests may house up to 25,000 individual wasps, making professional treatment essential for reducing sting risks.