Beech bark disease combination of bug and fungus, I’m not a trained forester just someone who cuts a lot of trees. I ran into it a lot in central Ontario around Bancroft and Barry’s bay, will look like white fuzz and affects seedlings to mature trees. (This was 5ish years ago). Affected trees don’t last long.
Here’s a decent article with pictures and range
https://ohioline.osu.edu/factsheet/plpath-tree-09
The problem with the affected trees is that they will fail/fall down in unpredictable spots. Break at the stump, mid stem or you’ll see the crown fall apart like a dead/dying birch. If your an arborist you don’t want to be climbing them. They also tend to grow in groves so an affected area effectively gets nuked, same as the ash trees in certain areas like along the Trent waterway. The wood gets punky fast and isn’t good for even firewood.
To bad as they’re important trees for wildlife food
Landowners can be proactive by cutting them down like ash trees. As far as I know no available treatments like for EAB
Ahhh yeah thats the one alright.
That bug is hitting us hard too. For the reasons you said, we marked out all our blocks of beech and allowed cutting to get rid of em while they're still alive and useful. End up caught in a cycle where the next generation lives only long enough to seed, dies and falls down. Over and over. Shame to see the nice big mature trees with bug feces on the trunks but at least someone can have em.
And yeah you got it...tough for a lot of things that eat beech nuts.
Apparently that bug got in through Halifax harbour and just ran roughshod westward, from what our forestry engineer said.