Research Focus

His research focus is diseases of ornamental plants. Currently the majority of his research is focused on Rose Rosette Disease, the most destructive ornamental disease in the U.S. However, Dr. Windham is also involved in research on plant health issues with hydrangea and flowering dogwood. Specific areas of current research are:
• Virus and eriophyid mite resistance in Rosa sp.
• Ecology of eriophyid mites associated with Rosa sp.
• Cultural and chemical controls for Rose Rosette Disease
• Cercospora leaf spot management in cultivated roses
• Powdery mildew resistance in flowering dogwood
• Reintroduction of dogwoods as a nursery crop in the Deep South
• Resistance to fungal foliar diseases in hydrangea


FYS 129 — SEC Football
EPP 313 — Introductory Plant Pathology
EPP 410 — Diseases and Insects of Ornamental Crops
EPP XXX — Diseases of Specialty and Row Crops
EPP 640 — Seminar

Mark windham

Professor and Distinguished Chair
office (865) 974-0957

138 Plant Biotechnology Building
2505 EJ Chapman Drive
Knoxville, TN 37996-4560

Professional appointment
75% Research, 25% Teaching

Graduate program concentrations
Sustainable Disease and Integrated Pest Management Systems

Areas of expertise
Ornamental plant pathology

rose rosette, hydrangea, dogwood, eriphid mites, cersospora leaf spot, powdery mildew, nursery crop, ornamental crops, crop management, seminar

Ph.D. Plant Pathology, 1983. North Carolina State University
M.S. Plant Pathology and Weed Science, 1979. Mississippi State University
B.S. Plant Pathology and Weed Science, 1977. Mississippi State University


Current lab members

  • Sara Collins: Research Associate I
  • Darin (Lee) Hale: Research Technician II
  • Tara Barnette: Undergraduate Research Assistant

Selected Publications

Chahal, K., C., R. Gazis, W. Klingeman, D. Hadziabdic, P. Lambdin, J. Grant, and M. Windham. 2019. Assessment of alternative candidate subcortical insect vectors from walnut crowns in habitats quarantined for thousand cankers disease. Environmental Entomology. 48:882-893.

Cheng, Q., A. Windham, K. Lamour, A. Saxton, and M. Windham. 2019. Evaluation of variation in switchgrass (Panicum virgatum L.) cultivars for rust (Puccinia emaculata) resistance. Journal of Environmental Horticulture. 37(4):127-135.

Solo, K., S. Collins, L. Schneider, M. Hajimorad, F. Hale, J. Wilkerson, A. Windham, and M. Windham. 2019. Evaluation of floral cuts on eriophyid mite retention on Knock Out® and multiflora rose cuttings. Plant Health Progress. 20:83-87.

Solo., K.., S. Collins, L. Schneider, M. Hajimorad, F. Hale, J. Wilkerson, A. Windham, D.H. Byrne, and M. Windham. 2019.  Evaluation of Rosa species accessions for resistance to eriophyid mites. Journal of Environmental Horticulture. 37(4):108-112.

Windham, A. and M. Windham. 2019. Rose diseases: identification and management. UT Extension. W833.

Windham, A., M. Windham and F. Hale. 2019.  Early detection of rose rosette disease. SP806.

For complete list of publications please visit my