I have some sweet gum that was left over from clearing my lot. I cut and stacked it back in January. It had been sitting on some pretty wet ground, not quite a mud pit but not too far off, since about June probably. It's been sitting on my concrete driveway since then, on top of bricks. I spit a couple of pieces to see how tough it would be and did notice what looked like little black holes in them. I did not see any termites or bugs in it so I paid it no mind. Now that spring is coming I've started splitting the rest and stacking it. I've noticed quite a few pieces have the same holes, and some have what look like tiny white eggs or something in them. I've still not seen any termites, but I did see some small black ants. mostly they were on the outside, but I found some ants after splitting one log and can't be sure if they were inside it or not. I've attached a couple of pictures so you can see the holes and the white dots inside (one "egg" looks like it has come out of it's hole). What has caused these holes? Again, I never saw any termites and the logs have been stacked on bricks above concrete for the last 2 months.