Bacterial Crown Gall of Roses Caused by Agrobacterium tumefaciens

Crown gall is a bacterial disease that causes large, tumor-like swellings (galls) that often occur at the crown of the plant. This 3-page document describes the symptoms and management of this disease on roses. Written by Kamil Duman, Susannah da Silva, Fanny Iriarte, Barron Riddle, Gary Knox, Matthew Orwat, Shawn Steed, E. Vanessa Compoverde, Jeffrey Jones, and Mathews Paret and published by the UF/IFAS Plant Pathology Department, November 2018.
http://edis.ifas.ufl.edu/pp343

Rose Mosaic Virus: A Disease Caused by a Virus Complex and Symptoms on Roses and Management Practices

Rose mosaic virus disease is one of the most economically important diseases affecting roses, because a single symptomatic leaf can result in the rejection of complete shipments for wholesale or retail rose producers. It continues to be a problem in nursery production and landscapes. This 5-page document discusses the causes, symptoms, and management of this disease. Written by Susannah da Silva, Binoy Babu, Mathews L. Paret, Gary Knox, Fanny Iriarte, Barron Riddle, Matt Orwat, Shawn T. Steed, E. Vanessa Campoverde, and Svetlana Y. Folimonova and published by the UF/IFAS Plant Pathology Department, August 2018.
http://edis.ifas.ufl.edu/pp338

Rose Rosette Disease: A New Disease of Roses in Florida

Figure 1. Clustering of small branches (witches’-broom)

Rose rosette disease is an incurable, destructive disease that affects both wild and cultivated roses. Over the past several decades, the disease has spread over much of the U.S., though it was first observed in Florida in 2013. This 6-page fact sheet describes the symptoms and diagnosis of the disease, as well as the cultural, chemical, and, possibly, biological controls that can minimize its spread. Written by Binoy Babu, Mathews L. Paret, Tim Schubert, Carlye Baker, Gary Knox, Fanny Iriarte, James Aldrich, Laura Ritchie, Carrie L. Harmon, and Svetlana Y. Folimonova, and published by the UF Department of Plant Pathology, May 2015.
http://edis.ifas.ufl.edu/pp317