A few puffs of dust into the nest opening usually kills wasps within 24 hours. Use a household hand duster. Cover with moist soil after the treatment to prevent the wasps from escaping. Many people confuse bees with wasps. Although related, they are not the same.
Bees feed pollen and nectar to their young.
Wasps feed insects to their young. Bees are beneficial insects that pollinate fruit trees and other plants. Without bees, many plants would bear no fruit. Common bees are the honey bee and the bumble bee. If you are stung by a honey bee, scrape the bee's stinger out of the wound immediately.