The answer to 'wasp swarms' is that wasp swarms are a common pest problem that can be caused by a variety of factors, including the construction of a new nest, the growth of an existing colony, or the disruption of a nest. Symptoms of a wasp swarm include a large number of wasps flying around an area, often near a nest or food source. Effective solutions for dealing with wasp swarms include removing the nest, using insecticides, and calling a professional pest control technician.
If the wasp swarm is small and the nest is easily accessible, you may be able to handle it yourself using an insecticide spray or dust. However, if the swarm is large or the nest is in a difficult-to-reach location, it's best to call a professional pest control technician who has the proper equipment and expertise to safely and effectively eliminate the problem.