I haven't Heather B. But have just dismantled an infested chicken coop and creosoted it. The little devils were well inside the wood boarding and all the joints and I can't imagine a fumer getting anywhere near them. I creosoted the inside and then sprayed the outside with Nettex total mite kill, to get the thousands of escapees.
Next day we had a load more on the outside -newly hatched and looking for a meal!