I am noticing the sawdust in my Ash HH wood pile today. I can see little larve inside the holes and they are only in the Ash pieces. I can tell one of my Ash trees near the house must be infected, the leaves did not come in full this year, so I guess the deadly process is starting. I happened to be walking in the woods today and noticed I may have the largest Ash tree on the planet. It actually has 4 or 5 trunks coming from the same tree and each trunk is easily 3 to 4 feet in diameter. I will post some pics when I get a chance. It will be a shame to see these trees die. I already have more dead wood than I need.