Plant Diseases – Kentucky Master Gardener Manual Chapter 6 (PPA-46)

The Plant Disease chapter in the Master Gardener Manual (Figure 1) focuses on those living organisms that cause disease: fungi, water molds, bacteria, viruses, nematodes, phytoplasmas, and parasitic plants. Large, color pictures (Figure 2) that depict selected stages in various pathogen life cycles are also included. A separate appendix accompanies this document and serves as a valuable reference tool for common diseases and symptoms of woody ornamentals, bedding plants, fruits, vegetables, turfgrasses, and grains.

KY Master Gardener Manual Chapter 6–Plant Diseases (PPA-46) and its Appendix (MG-ch6-Appendix) are available online.

Figure 1. First page of the KY Master Gardener Manual Chapter 6–Plant Diseases (PPA-46)

Figure 2. Large, colorful images illustrate the life cycles of selective organisms that represent different pathogen types. This page from the manual depicts signs and symptoms of powdery mildew.

For additional publications on plant diseases, visit the UK Plant Pathology Extension Publications webpage.


By Kim Leonberger, Plant Pathology Extension Associate, and Nicole Gauthier, Plant Pathology Extension Specialist



Posted in Featured Pubs & Videos