Question: do hawthorn trees get fire blight?
Answer: Fireblight is a disease caused by the bacterium Erwinia amylovora. ... Fireblight chiefly affects those members of the Rosaceae family producing a type of fruit known as a pome fruit: apples, pears and related ornamentals including Cotoneaster, Sorbus, Crataegus (hawthorn), Photinia (syn. Stransvaesia) and Pyracantha.