I cut down an apple tree about 2-3 weeks ago and have several larger logs drying out in me basement. I am in GA and the humidity isn't great, but not too bad. I do have a dehumidifier running in the basement with my tools and the apple wood. I went ahead and cut a few of the smaller logs into disks and let them dry out in 5 gallon buckets (no lids). Most of them are looking good, however any with old or dead wood in them seem to have this white mold - see pictures below. A few questions: 1) is this an issue? 2) if it is an issue, can I scrape it off with steel wool or something and use the wood? 3) Any suggestions or anything I can do to save / use the wood?