For full disclosure, this isn’t technically a repellent — it’s more of a deterrent. The wasps might not completely go away from your yard if you hang up fake nests. What they will do, however, is entice them to go somewhere else because wasps are territorial and won’t set up where they think another nest already is. More likely they’ll build their nests at least 200 feet away. So fake nests are good for keeping them out of highly populated parts of your yard or home area. 

Fake nests are a much more eco-friendly way to deter wasps from your space since they don’t cause them any harm. The two best-selling and best-rated decoy nests on Amazon are the ones from Patio Eden and Decyool. Patio Eden’s come in a three-pack with a 3.8 rating for $11.95 while the Decyool variety is a four-pack with a 3.9 rating for $17.95 at the time of writing. It should be noted that buyers of both varieties only gave the nests a five-star rating 50 percent of the time, so there is a range of varying success. 

One Amazon reviewer wrote they tried everything before buying the Decyool nests and they finally did the trick. “[W]e hung them up in our backyard and I haven’t seen a wasp since! … I wish I bought them sooner.” Reviewers of both nest types noted that it takes a few days for them to be effective and that they cannot withstand rain and wind.