Disease & Pest Resistant
Trees whose own records document resistance or tolerance to a named disease or pest. None is immune, and resistance is specific: a tree that shrugs off scab can still take cedar-apple rust, so check the Disease line on each product page.
By problem: fire blight, apple and pear scab, cedar-apple rust, powdery mildew, bacterial spot, chestnut blight and pear psylla.