Vespidae is a highly predacious family that holds wasps and hornets. These insects are characterised by their narrow waists and their wings which fold longitudinally in half when at rest. The family displays a spectrum of social behaviour; some groups are strictly solitary, but the vast majority are social, with many species that fall somewhere in between. The typical structure of a social nest will involve a queen, workers and drones (male wasps). The workers possess modified egg-laying tubes, or ovipositors, repurposed for stinging and defending the nest from predators. Vespula species are commonly called yellow jackets after their striking yellow and black colouring.
Wasps are considered beneficial insects- they eat pest species and are pollinators.
Wasps may sting when they feel threatened.
Vespidae is an incredibly diverse family. Characteristic of Vespids is their narrow waists. The bodies are slender and long, lacking hairs. They tend to display aposematic colouration, a term used in biology for organisms that use bright colours to warn other things that they might be dangerous. This colouration involves typically yellow and black, but this isn't true for all Vespids.
It's not suggested to remove these from your homes and gardens. Wasps (mainly European) provide services that if absent, might cause pest populations to rise. If you can't tolerate the wasps, call up a local pest controller for their removal.
It's not recommended to treat gardens with wasps.