lemongrass has natural insecticides and keeps wasps away.
Paper bag wasp nests - to keep the wasps away. Fill the paper bag with plastic bags and make it look "nest like". This will deter wasps from making a nest in the same area.
DIY natural wasp and bee repellent
Difference Between a Honey Bee and Wasp Yellow Jacket - Check out more barbecue tips and tricks at TexasBBQNinja.com
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Repel wasps from wood naturally using household products.
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DIY wasp spray(also works on carpenter bees) 1/4 cup dish soap 1/2 cup water 20-25 drops peppermint essential oil