While mud daubers are solitary wasps, not generally known to show aggression towards people, they are still considered a nuisance animal. Although non-aggressive, you might not want mud daubers flying around your backyard get together or your business’ outdoor seating.
On commercial properties, mud dauber sightings may deter guests from spending their money at your venue. Restaurants with outdoor porch seating, barn venues, farmers’ markets and outdoor festivals can suffer from the presence of flying, stinging animals. Even though those mud dauber wasps help to control brown and black widow spiders, responsible homeowners don’t want to host outdoor events with wasps of any kind in attendance.
Mud dauber wasps capture spiders to feed to their young
Mud daubers and many other wasp species provide food for their young by capturing spiders and other insects, such as roaches, by seizing insects and injecting venom into their brains. The venom keeps the spiders alive, just barely, while mud dauber females lay their eggs on their powerless victims. Providing fresh food for their developing young, the young wasp(s) feed on the spiders’ insides until the spiders die.