Hi
A hummingbird feeder is a great way to attract hummingbirds into the yard, but wasps can also be attracted to the sweet nectar. There are a few things you can do to keep your hummingbird feeder wasp-free.

Wasps and bees are attracted to the color yellow while hummingbirds are attracted to red. Often red feeders come with yellow plastic flower petals surrounding the drinking hole. Yellow is only there to make the hummingbird feeder more attractive to buyers, not to hummers. Try painting the petals red, but be careful not to get paint too close to, or inside the drinking hole where a hummer’s beak might scrape paint flakes off into the nectar. Be sure the paint is dry before re-hanging the hummingbird feeder.

Thanks