
Callery Pear (Bradford Pear) is on the hazard list here, which shifts the odds toward removal. Callery pear is the tree that splits itself apart on schedule — every cultivar carries the same built-in defect, a whorl of near-vertical stems meeting at one point on the trunk with included bark in the unions, so failure is a question of when, not whether. It has also escaped into fencerows and old fields across central Indiana, so most quotes on one are half hazard removal and half invasive control.
The important point is that Callery pear usually fails structurally while still looking perfectly healthy, which is what homeowners miss — a fully green crown tells you nothing. When it does show disease it is fire blight: shoot tips blacken and hook over into a shepherd's crook with dead leaves clinging, typically in late spring; stress reads as scorched leaf margins and a thin bloom, while dangerous reads as a visible crack or seam at the main union regardless of foliage.
This is the species that comes apart in the first serious ice event after it gets size on it. The crown is one heavy dome sitting on a handful of stems that all meet at a single point, so ice loads it evenly, the included-bark union unzips, and the tree splits into halves or thirds — a 50% crown loss overnight is routine, not exceptional.