How can I deter bumble bees (carpenter bees) from drilling holes in my rafters under my porch?

If you garden they are great pollenaters and they are mostly harmless aside from the holes. I would build them a nice home to deter them. Just use any scrap 2 by 4 pieces you have. THEY DO NOT LIKE PAINTED WOOD....http://www.getridofthings.com/get-rid-of鈥?/a>How can I deter bumble bees (carpenter bees) from drilling holes in my rafters under my porch?
A mixture of linseed oil and mineral spirits (50 - 50)is equally efficient.How can I deter bumble bees (carpenter bees) from drilling holes in my rafters under my porch?
A good coat of paint will usually stop them.