If you've noticed an influx of wasps around your property, there's a good chance they're nesting in one of your trees. Wasps are attracted to trees for various reasons, including the presence of other insects that they can prey on and the availability of water. In some cases, wasps will also build their nests in trees because it protects them from the elements and predators. While having a few wasps around your property is not necessarily a cause for alarm, a large number of wasps can be problematic. Not only can they be aggressive when disturbed, but their nest can also attract other pests like ants and termites. Suppose you have concerns about the wasp population on your property. In that case, it's best to contact a pest control professional who can safely remove the nest and help keep the population under control.