I've been cleaning out my parents basement and when I moved some things in front of this there was about 50 silverfish and spiders beneath there. I want to remove the wood in the photo and fill it with concrete. Is this the best way to do it? I want to stop the bugs from getting in as it's basically straight dirt underneath.http://ift.tt/2EDA4mt via /r/DIY http://ift.tt/2FyS56F
