When should a callery pear (bradford pear) be pruned?
The only pruning that changes the outcome happens early: on a young tree, thinning out the whorl of branches originating at the same point and establishing a single leader buys real years. Once it is 25-30 ft with a full crown, crown reduction only delays the split, and pruning during bloom or right after leaf-out invites fire blight, which enters through fresh wounds and blossoms.
Reading callery pear (bradford pear) before you cut
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.
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