Fungicides

Frederick M. Fishel

Frederick M. Fishel

Weizhe Weng, Michael T. Olexa, Tatiana Borisova, Weizhe Weng, andSean M. Olevnik

This handbook is designed to provide a summary of the principal federal and state (Florida) laws that directly or indirectly relate to agriculture. Because these laws are subject to constant revision, portions of the handbook could become outdated at any time. The reader should use it as a means to determine areas in which to seek more information and as a brief directory of agencies that can help answer more specific questions.

Megan M. Dewdney
Other Contacts: Jamie D. Burrow

A table of products recommended in the Florida Citrus Production Guide and their effects on foliar fungal diseases & information on fungicide resistance management.

Shawn Steed, Wael Elwakil, Marissa Cassaway, andGary Vallad

Viburnum sp. is an important woody ornamental crop for nursery growers in Florida. Around 2014, growers indicated that common labeled fungicides targeting downy mildew failed to provide acceptable levels of disease management. Through a research grant from the Florida Nursery, Growers and Landscape Association, UF/IFAS researchers and UF/IFAS Extension Hillsborough County agents conducted studies to determine fungicide efficacy of oomycete fungicides to help nursery professionals produce and maintain a healthy viburnum crop. Written by Shawn Steed, Wael Elwakil, Marissa Cassaway, and Gary Vallad, and published by the UF/IFAS Department of Environmental Horticulture, December 2025.