To keep wasps and spiders from building their nests, paint your porch ceiling sky blue or a pale blue. This tricks the insects into thinking it's the sky. They won't build there.
Source: Curb Appeal - The Block, John Gidding on HGTV
By Sherry Hampton from Valdosta, GA
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Can anyone help? I have a friend who is absolutely terrified of Wasps.
I live in a very wooded county of Indiana. Wasps are a constant problem. I have found a couple of ways to thwart wasps.