DENDROLOGY

Detailed explanation-1: -Plant pathogenic bacteria often enter plants through natural openings or wounds. Major bacterial plant diseases include leaf blights, wilts, leaf spots, galls, and root rots. Bacterial diseases must be managed by sanitation and prevention. Very few can be controlled by bactericides.

Detailed explanation-2: -Phytopathology is the branch of agricultural, botanical or biological science which deals with the cause, etiology (aetiology), resulting in losses and management methods of plant diseases. Plant pathology can also be defined as the study of the nature, cause and prevention of plant diseases.