Integrated Management of Bacterial Spot on Tomato in Florida

View of diseased tissue under microscope exhibiting bacterial streaming.

Bacterial spot is one of the most detrimental diseases of tomato and is especially severe in the southeast United States when weather conditions (high temperature, high humidity, and rain) become conducive for disease development. This new 8-page publication of the UF/IFAS Plant Pathology Department presents updated information about the causal pathogen and management of bacterial spot on tomato in Florida. Written by Amanda Strayer-Scherer, Ying-Yu Liao, Peter Abrahamian, Sujan Timilsina, Mathews Paret, Tim Momol, Jeff Jones, and Gary Vallad.
https://edis.ifas.ufl.edu/pp353

Fusarium Wilt (Fusarium oxysporum f. sp. niveum) of Watermelon

A watermelon sits among leaves in the sun. Photo taken on 05-10-17.

Fusarium wilt of watermelon is one of the most serious and difficult diseases to manage and occurs in most production regions worldwide. The fungus can be seedborne and has great longevity in the soil, allowing infested soil to also serve as a source of infection. This new 4-page publication of the UF/IFAS Plant Pathology Department signs, symptoms, and the disease cycle of Fusarium wilt and provides recommendations for cultural and chemical management. Written by Pamela Roberts, Nicholas Dufault, Robert Hochmuth, Gary Vallad, and Mathews Paret.
https://edis.ifas.ufl.edu/pp352

Powdery Mildew on Watermelon in Florida

This 3-page document discusses the symptoms and management of powdery mildew, a problematic fungal disease, on watermelon in Florida. Written by Pamela D. Roberts, Mathews Paret, and Nicholas Dufault and published by the UF/IFAS Plant Pathology Department, January 2019.
http://edis.ifas.ufl.edu/pp342

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