Monica L. Elliott

Normal "Abnormalities" in Palms

Timothy K. Broschat and Monica L. Elliott

Hurricane-Damaged Palms in the Landscape: Care after the Storm

Monica L. Elliott and Timothy Broschat

While many palm species are adapted to windstorms, a hurricane can damage even the most tolerant palms. This 3-page fact sheet provides suggestions about what to do after a windstorm has occurred once it is safe to venture outside to care for the landscape.

Turfgrass Disease Management

Monica L. Elliott andPhilip F. Harmon

A UF/IFAS numbered Management.

Anthracnose

Monica L. Elliott andPhilip F. Harmon

A UF/IFAS numbered Management.

Large Patch

Monica L. Elliott andPhilip F. Harmon

This document discusses the occurrence and management of large patch disease in warm-season turfgrasses, particularly St. Augustinegrass and zoysiagrass. It explains the conditions that trigger the disease, symptoms, and signs of infection. The article emphasizes cultural controls, such as nutrient and water management, and chemical controls, including various fungicides. It also highlights the importance of integrating cultural practices with chemical treatments for effective disease management and recovery of turfgrass. First published: May 1991.

Fairy Rings

Monica L. Elliott andPhilip F. Harmon

Fairy rings, especially the mushrooms, are most commonly observed during the summer months. It is during this time of year when Florida receives the majority of its rainfall. Fairy rings occur when large quantities of organic matter, such as lumber, tree stumps, and logs, are naturally located or have been buried in a lawn. The fungi are nourished and develop on this material. The mushrooms, which can be all sizes and shapes, are the fruiting stages of these fungi.

Helminthosporium Leaf Spot

Monica L. Elliott andPhilip F. Harmon

Pythium Root Rot

Monica L. Elliott andPhilip F. Harmon

Rust

Monica L. Elliott andPhilip F. Harmon

The "Turfgrass Disease Management" section of the Florida Lawn Handbook (https://ask.ifas.ufl.edu/publication/LH040) can be referenced for explanations of cultural and chemical controls.

Key for Identification of Landscape Turfgrass Diseases

Philip F. Harmon andMonica L. Elliott

This document provides a key for the preliminary diagnosis of landscape turfgrass diseases, focusing on common issues in Florida. It includes sections on disease identification, pathogen details, affected turfgrasses, occurrence timing, symptoms, cultural controls, and chemical treatments. The key helps narrow down potential disease problems and offers links to more specific diagnostic resources. For unresolved issues, consulting local extension offices or submitting samples to diagnostic clinics is recommended. First published: July 1991.

Take-all Root Rot

Monica L. Elliott andPhilip F. Harmon

This document discusses the root rot disease affecting warm season turfgrasses, caused by the pathogen Gaeumannomyces graminis var. graminis. The disease is triggered by high rainfall and stressed turfgrass, leading to symptoms such as yellow patches and rotted roots. Cultural controls, including proper mowing and balanced nitrogen-potassium applications, are essential for managing the disease. Preventative fungicides can be used but are less effective once symptoms appear. The document emphasizes the importance of stress prevention and provides detailed guidelines for turfgrass management to mitigate the impact of the disease. First published: July 1994.

Cercospora Leaf Spot

Monica L. Elliott andPhilip F. Harmon

[ABSTRACT]

Ganoderma Butt Rot of Palms

Monica L. Elliott, Timothy K. Broschat, andTimothy K. Broschat
Other Contacts: Braham Dhillon

This document is about Ganoderma butt rot, a lethal disease affecting all palm species, caused by the fungus Ganoderma zonatum. It describes the symptoms, diagnosis, and life cycle of the pathogen, emphasizing the lack of effective treatments or preventive measures. First publication Date: November 2000.

Fusarium Wilt of Canary Island Date Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

Graphiola Leaf Spot (False Smut) of Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

Graphiola leaf spot, also referred to as "false smut," is a foliar pathogen of certain palm species. In Florida, it is primarily a cosmetic disease and does not adversely affect plant growth. Nutrient deficiencies, such as potassium or magnesium deficiency, are much more serious palm health problems than this disease, especially for Phoenix species.

Pestalotiopsis (Pestalotia) Diseases of Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

Leaf Spots and Leaf Blights of Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

This fact sheet is limited to those diseases where the pathogens only infect (invade) and cause spots and blights of the leaf blade. Other diseases may cause death of leaflets and leaf segments but are actually the result of a pathogen infecting the leaf petiole or rachis.

Thielaviopsis Trunk Rot of Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

Thielaviopsis paradoxa is a fungus that can infect any part of a palm and so can cause numerous diseases. In Florida, the two most frequent (and usually lethal) Thielaviopsis diseases observed in the landscape and field nursery are a bud (heart) rot and trunk rot.

Bud Rot of Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

Petiole (Rachis) Blight of Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

Lethal Bronzing Disease (LB)

Brian W. Bahder and Ericka E. Helmick

A UF/IFAS numbered Fact Sheet. in support of UF/IFAS Extension program: Integrated Pest Management

Fusarium Wilt of Queen Palm and Mexican Fan Palm

Monica L. Elliott
Other Contacts: Braham Dhillon

This document is PP278, one of a series of the Plant Pathology Department, UF/IFAS Extension. Original publication date June 2010. Revised August 2013 and January 2017.

Calonectria (Cylindrocladium) Leaf Spot of Palm

Jiaming Yu andMonica L. Elliott
Other Contacts: Braham Dhillon