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A notifiable bacterial disease of the rose family, although it may also affect apple and pear trees.

A disease affecting apple, plum and pear trees, in which the blossom trusses wilt and turn brown. Occurs more commonly in mild, wet springs.

A problem that affects trees or shrubs when they've been planted in soil where a plant of the same species had been growing. It particularly applies to members of the Rosaceae family (roses, apples, cherries, plums). Symptoms include retarded