Download or read book Compendium of Rose Diseases written by Ralph Kenneth Horst and published by Amer Phytopathological Society. This book was released on 1983 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infectious diseases: diseases caused by fungi, bacteria, viruses, nematodes. Noninfectious diseases: physiologic problems, environmental imbalances, air pollution, pesticides toxicity, nutritional deficiencies, nutritional toxicities.