First you need to find the nest. You have to get rid of the nest in order to solve the whole problem. Once you find the nest, you’ll need to determine if it’s underground or elevated. This will determine the kind of wasp killer you buy from the store.
If the nest is elevated, look for a can that has projectile spray in the label. This will be very useful especially if the nest is high up. If the nest is underground, you can use any wasp killer solution you can buy.
Apply the wasp killer to the nest as many times as is necessary. Be ready to run away if the wasps come out angrily to attack you. When no wasps come out anymore, your job is done. It’s time to take down the nest or fill it with sand and/or gravel (if it’s underground).