Ornamental Pathology - Botany and Plant Pathology, Purdue University
Ornamental Pathology Specialist

Dr. Janna Beckerman
Program Description
Dr. Beckerman’s program in ornamental plant pathology focuses on research and extension to aid growers in the diagnosis and management of commercially important ornamental diseases in the nursery, greenhouse and landscape.
Dr. Beckerman has developed (with Dr. Cliff Sadof, Entomology) a series of four apps, to assist homeowners in the diagnosis and management of trees, annuals, perennials and tomatoes. These apps work for both the iOS and Android platforms. For more information see www.purdueplantdoctor.com.
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Ornamental Disease Management Links:
Purdue Plant Doctor - https://purdueplantdoctor.com
Illustrated Glossary of Plant Disease - https://edustore.purdue.edu/bp-164.html
Fungicide Rotation for Nursery, Greenhouse, and Landscape Professionals - https://edustore.purdue.edu/bp-71-w.html
Disease Management Strategies for Horticultural Crops: Fungicide Mobility for Nursery, Greenhouse, and Landscape Professionals - https://edustore.purdue.edu/bp-70-w.html
Using Organic Fungicides - https://edustore.purdue.edu/bp-69-w.html
Disease-resistant Annual and Perennial Production - https://edustore.purdue.edu/id-416-w.html
Purdue Landscape Report - https://www.purduelandscapereport.org
Specific Diseases and Disorders:
Downy Mildew - https://edustore.purdue.edu/bp-68-w.html
Foliar Disease - https://edustore.purdue.edu/bp-143-w.html
Juniper Rusts - https://edustore.purdue.edu/bp-137-w.html
Powdery Mildew - https://edustore.purdue.edu/bp-5-w.html
Phytophthora - https://edustore.purdue.edu/bp-215-w.html
Rose Black Spot - https://edustore.purdue.edu/bp-139-w.html
Apple Scab - https://edustore.purdue.edu/bp-39-w.html
Root Rot in the Landscape - https://edustore.purdue.edu/bp-206-w.html
Iron Chlorosis - https://edustore.purdue.edu/bp-27-w.html
Pythium - https://edustore.purdue.edu/bp-181-w.html
Salt Damage - https://edustore.purdue.edu/id-412-w.html