Sprinkling it near their favorite entry points disrupts their pheromone trails.
Hanging a faux-wasp nest can sometimes discourage bees from settling, as they avoid territory claimed by predators. HOW TO GET RID OF BEES
Bees hate the strong scent. Wiping down the porch railings with it acts as a natural "No Trespassing" sign. Sprinkling it near their favorite entry points disrupts