REsurrecting this thread - I have some Red Oak from a large tree I cut down in my yard. It has been air drying for over two years now. I'm slowly starting to use it in some projects. I have two stacks about 5' tall x 4' wide by 9 ' long. I just noticed some small holes, and dust - I am guessing I've got powder post beetles in my wood. After reading this thread, I'm thinking I need to treat the wood with a boric acid wash. Is it too late, if they have already bored into the wood? Do I need to take the stickered stack apart to spray it all, or can I just put the pump sprayer in between the layers, and spray away?
Any tips appreciated.