Wasp invasion Share Published lördag 14 maj 2011 kl 12.38 An unusually large number of wasps are flying about in Sweden right now with queen wasps looking for places to build a nest. The wasps have benefited from a warm summer last year and a long, snowy winter. Our journalism is based on credibility and impartiality. Swedish Radio is independent and not affiliated to any political, religious, financial, public or private interests. Find out more about how we work (in Swedish).