"Plant Diseases" is a study by the famous botanist Harry Marshall Ward, which is an important addition to the theory and practice of plant protection. The author analyzes in detail common diseases to which cultivated plants are exposed, and offers new methods of combating them. The book contains illustrations and descriptions of the symptoms of diseases, helping readers to quickly identify diseases and take the necessary measures to prevent them. This is a must-read for agricultural professionals and anyone interested in plant health.