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For exposed pine, like a roof eave, how can the wood be treated to prevent bees from tunneling into the wood, or building nests?

Edit: Currently, I'm using a water-based stain, to no effect.

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Bees do not tunnel into wood. Nor do they build nests. I think you might be worried about wasps, which are realy different creatures. – Kate Gregory Aug 15 '11 at 17:49
Kate, yes, with the exception of: en.wikipedia.org/wiki/Carpenter_bee – Brian Maltzan Aug 15 '11 at 20:29
up vote 1 down vote accepted

Paint it or seal it and add Bug Juice to to the paint/stain/sealer. You can read about bug juice here.

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I'd rather not use a pesticide, is there something else that would act as a deterrent? – Brian Maltzan Aug 15 '11 at 20:37

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