Wow, this spray is so simple. Mix 1 tablespoon of peppermint oil with 4cups of water in a spray bottle. Shake well when using. Wasps hate the smell of the peppermint oil. But if you spray it on them it will kill them as well. I will need lots of Peppermint oil to keep the wasps from trying to build little paper nests under our eves on our home. I'm going to mix up a batch and let you know what happens.