
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:
• 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
Dr. Windham has written numerous articles on his research findings concerning the RRD and is a frequent speaker at local, district, and national rose society meetings and conventions. He is a much sought-after speaker who not only inspires and educates his students, but also rosarians across the country.
The meeting will be held from 2:00 pm – 4:00 pm as a video meeting using the GoToMeeting app. In addition to Mark’s presentation, we will discuss pruning, rose bed preparation, planting a new roses, spraying, and the first fertilization.
More information on how to log into GoToMeeting, please see Marty Reich’s email to NRS members. If you would like to attend as a guest, please submit your request on the Ask a Consulting Rosarian form on the website.

Bob is an active rose exhibitor at all levels and the 2007 recipient of the ARS Guy Blake Hedrick Jr. Award for lifetime achievement in rose exhibiting. He is also a hybridizer with 15 named varieties, including the show roses, ‘Dona Martin’, ‘Butter Cream’, ‘Peter Cottontail’ and ‘Pasadena Star’. Two of his latest roses are orange blend shrub named, ‘Ruth Tiffany’ and it the orange blend floribunda, ‘Escondido Sunset’.
If you are planting new roses this spring, whether to expand your garden or replace your least favorite rose bushes, the 2020 Tanarky District Roses in Review Report is an excellent source of information for roses that grow well in our district (Tennessee / Arkansas / Kentucky).