Wasps may go away if you destroy their nest, but they may also attempt to rebuild nearby if queen survives, depending on timing, method, and species, as destruction alone does not always eliminate colony. If you destroy nest but queen and many workers survive, they may attempt to rebuild nest nearby in same location or close by, as they have invested energy and have brood to care for, and they are attracted to previous location due to pheromones and favorable conditions. If nest is destroyed early in spring when queen is establishing, queen may rebuild elsewhere. If nest is destroyed late in summer when colony is large, surviving wasps may disperse and try to build new nest or join other colonies. If you completely remove nest and clean area to remove pheromones, and seal entry points, chance of wasps returning to same spot is reduced, but they may still build nearby if habitat favorable. Professional pest control that uses insecticidal dust that kills queen and workers is more effective than just knocking down nest, as killing queen prevents rebuilding. After destruction, wasps may return for few days searching for nest, especially if brood remains. To ensure wasps go away, remove nest at night when wasps less active, dispose of nest in sealed bag away from house, clean area with soap and water to remove pheromones, seal cracks, and keep food and trash sealed to reduce attractants, and consider preventive measures like hanging fake nests which may deter some species.
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