Bradford pear leaves are pale green with brown spots on both sides. No obvious insects. Three main possibilities:
Common in humid spring; minor in hot summer. Manage by raking/destroying fallen leaves. Fungicides if severe. Reference images.
Affects Bradford pears; orange spore structures on fruit, leaf spots, browning. Reference images.
Soil test for pH and nutrients if not done recently.
Upload a photo for precise ID. Otherwise, contact your county Extension office (locator) for local expertise and possible site visit.
Expert insight provided by Steve.
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