With daisy-like flowers and a strong scent, Roman chamomile is a sweet-smelling and lovely addition to any garden or patio. It also happens to be an effective wasp repellent. The essential oil of ...
The hammer orchid's flower mimics the female wasp looking upward for a male flying by, complete with a fake shiny head and furry body. The orchid even releases an enticing female wasp pheromone.