Is the bark is falling off my tree an emergency?
Not urgent. Bark does not fall off living wood. Wherever it sloughs, the cambium underneath died some time ago and that section of trunk stopped moving water and sugar — the shedding is the aftermath, not the event. The number that decides everything is how much of the trunk's circumference is involved. A strip is a wound the tree grows around. A band all the way around is a girdle, and everything above it is finished whether it looks green today or not.
What changes while you wait
Slow signal, not a countdown — nothing meaningful changes in days or weeks. Across one to three seasons, decay fungi work into the exposed face, the trunk loses cross-section there, and branches above the dead zone die and become the actual falling hazard. Recheck each spring: a growing roll of callus at the wound margins means the tree is closing it; an expanding bare patch plus a thinning canopy means it is not.
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