08/07/2026
Do Fake Wasp Nests Really Deter Wasps and Hornets?
The short answer is: there is no reliable evidence that fake nests consistently deter wasps or hornets.
It's true that wasps can be territorial, but research suggests they rely far more on chemical cues (scents and pheromones) than on the visual appearance of a nest. An active nest produces unique chemical signals that other wasps can detect. A fabric or paper imitation cannot reproduce these cues.
Many people believe fake nests work because they hang one where a nest was removed the previous year and notice that "the wasps never came back." However, this is simply normal wasp behaviour.
Wasps and hornets do not reuse old nests. At the end of the season, the colony dies out, and the nest is abandoned. The following spring, new queens emerge from hibernation and build entirely new nests, often in different locations.
So, if wasps don't return to last year's nest site, it is not proof that the fake nest was effective—it is exactly what would be expected to happen naturally.
If you're concerned about wasps or hornets nesting on your property, the most effective approach is to remove attractive nesting sites where possible, monitor for early nest activity in spring, and seek professional advice if an active nest develops.
Our picture shows a wasp nest being built in a fake wasp nest.
