Gary from Roanoke, Va writes
We have a finished hardwood floor that is infested with Powder Post Beetles. Since the floor is finished I cannot treat. If I treat the sub floor in the crawl space will it penetrate all the way up to the hardwood?
Bora-Care will only penetrate the wood it is applied to. For floor that is stained you will either have to pull it up and treat the unfinished underside or sand down the top to the raw wood and apply.
Answer last updated on: 03/27/2018