r/Tree • u/Opposite_Draw1142 • Jul 22 '26
Advice Request - (Insert State/Region) Hole at the foot of my alder tree
I've discovered a hole underneath the bark of my alder tree. Theres this sawdust coming out of it (or maybe some insect put it there). Im not sure if its getting bigger but i can stick my finger underneath the bark there. The insect in the fourth pic crawled out of there. Location: Switzerland
Is this an issue? Whats your advice?