"Pruning any stems showing signs of disease also helps maintain rose health," says Speight. Botrytis blight (a type of mold), canker, powdery mildew, and other rose diseases can be pruned away ...
Canker sores are small, painful reddish lesions in the mouth that have a white or yellow center. Some causes of canker sores are spicy/acidic foods, vitamin deficiencies, braces, and stress.