In spring the overwintering queens leave their hibernating quarters to seek nesting sites which could be in a hole in the ground, a hollow tree or artificial structures such as eaves, lofts and attics, garden sheds etc. The queen starts to build her nest with a papery material that she makes by chewing small pieces of wood mixed with saliva; this is known as Wasp paper. She will raise the first few workers by her own efforts and those workers will then commence the enlargement of the nest and caring for the immature Wasps to follow. Nest construction starts in June and will reach it’s maximum in size in September, when 5 – 10,000 workers may be present. These workers will forage for food up to 400 metres from the nest. The size of wasp colonies will vary from year to year, the severity of the previous winter is probably the key factor.
It is always advisable to let a professional Pest Control Officer deal with a Wasp Nest.