Asian pear tree disease

Fire Blight Disease. The infection decimating your Asian pear's springtime glory comes from Erwinia amylovora bacteria overwintering in small bark cankers in the tree's branches, twigs or trunk. These cankers begin releasing a yellowish, Erwinia-loaded fluid when your tree awakens from its winter dormancy and resumes.

Asian pears (Pyrus pyrifolia and p. ussuriensis) are fast-growing trees that produce round crisp pears. They are susceptible to most of the diseases suffered by the European species of the pear genus Pyrus. They especially suffer from the fungal diseases pear scab, powdery mildew and sooty blotch.

Asian pears may be.