Muddauber/Wasp Screen

[camp2udrop]

We have a Fleetwood Pop-up camper.  Noticed that the screen behind the refrigerator is a very inviting home to muddaubers and wasps that would love to build.  What would you recommend to keep these wasps from building where they shouldn't be building?  There are two areas that are 10" x 20" that needs to be protected.  Thanks for any advice you can provide.

[hoppy]

I have seen where some people use steel wire mesh window screen material to conform to the inside of the two openings in the vents.