One of the things that attracted us to our home was the big back porch. However, we discovered that the wasps liked it so much that they didn’t want to share. Seriously. Walking on the back porch was a high anxiety endeavor. Laundry from the clothesline required close inspection, to avoid grasping a wasp.
We initiated chemical warfare on them. New wasps moved in…
The neighbor gave is an odd suggestion. Tack up toilet bowl fresheners. They work as a repellant. These things:
https://www.amazon.com/Willert-Home-Products-Bathroom-Freshener/dp/B002YC4EEA/ref=sr_1_10?ie=UTF8&qid=1532432036&sr=8-10&keywords=toilet+bowl+deodorizer
Once the wasp nests were gone, by knocking them down, and running for your life, or whatever method you see fit, try the following…
I snip the corner off the packaging, then hang it from a nail, under the eaves of our porch. I space them roughly 6 feet apart. After a week or so, the smell is not so strong, yet the wasps stay away. I replace them every 2 to 3 months.
We now see an occasional scout on the back porch, but they soon fly away.
We have our porch, and they get to live.