Resources from
Dr. Mark Windham

These materials, provided by Dr. Mark Windham, offer practical guidance on identifying and managing common rose diseases, including non-chemical solutions.

Presentation: Rose Diseases by Mark Windham
Rose Diseases: Identification and Management
Rethinking Black Spot Management
A Comparison of Foliar Diseases of Roses
Early Detection of Rose Rosette Disease
Diagnosis of Ornamental Plant Diseases

About Dr. Mark Windham

Dr. Mark Windham is a nationally recognized plant pathologist and rose educator with decades of groundbreaking research on Rose Rosette Disease and other ornamental plant health challenges. As the retired Distinguished Chair of Ornamental Pathology at the University of Tennessee, he has authored plant patents, developed disease-resistant cultivars, and received the American Rose Society’s prestigious Klima Medal for Rose Education.