MENU

AskIFAS Powered by EDIS

about page banner
<

Plant Disease

Narrower Topics

Cercospora leaf spot

The typical rainy and humid weather of Florida summers creates a perfect environment for the proliferation of a variety of fungal diseases. In particular, Cercospora is a genus of fungus of which there are over 1,200 different species. Because there are so many species of this fungus, many different plant species are affected including many garden vegetables and ornamentals.--- "Cercospora: A Summer Fungal Disease Problem", Gardening in the Panhandle (8/19/2013)

Dollar Spot

Dollar spot (Sclerotinia homoeocarpa, F.T. Benn) is a fungal disease that affects turfgrasses in Florida. It starts by causing tan-colored lesions on individual leaf blades. As the disease progresses, it creates round, straw-colored patches in the grass that start out the size of silver dollars, but can spread up to six inches or more in diameter. --"Dollar Spot", Gardening in a Minute

Redbay Ambrosia Beetle-Laurel Wilt Disease (RAB-LW)

This devastating disease has spread rapidly along the southeastern seaboard of the U.S. since 2003 and has begun to affect commercial avocado production in Florida. Laurel wilt is spread by ambrosia beetles and interconnected roots of avocado trees. The time from infection to tree mortality ranges from four to eight weeks. To prevent spread of the disease, it is important that trees be destroyed as soon as they are affected by the disease.

Publications

Related IFAS Blog Posts

Plant Disease Update for Commercial Plant Producers

Liz FelterFebruary 21st, 2023Cercospora leaf spots are a common issue affecting many ornamental crops like hostas, hydrangea, hibiscus, pansy, verbena, gardenia, and others. However, starting in the Fall of 2022, an increase in damage caused by the pathogen in Spathiyphyllum plants appeared. Spots are first noticeable on older leaves at the bottom of the plant and then spread upward. […]

MEDIA ALERT: Come to Florida Ag Expo; learn about hops, other emerging crops and artificial intelligence

Brad BuckOctober 27th, 2022WHAT: Tour a hops yard. Find out how artificial intelligence helps farmers. Discover how UF/IFAS will help growers use fewer nutrients. Find out how plant breeding can help growers avoid diseases – all at this year’s Florida Ag Expo. The Expo, one of the largest in the state, will highlight the latest in technology and […]

UF/IFAS scientist develops detection method for lethal palm disease that saves time, money, property

Lourdes MederosAugust 7th, 2022Para acceder a esta comunicación en español, por favor utilice este enlace About this series A team of UF/IFAS scientists has reached a milestone in the fight against a widespread disease that affects palms throughout the southeastern United States. Caused by a fungus, Ganoderma zonatum, it produces symptoms in the late stages of the disease […]

Available Languages:

English

Español