Q.How to get rid of fungus on st Augustine grass
What type of fungicide do I use to get rid of a fungus on St Augustine grass?
Your first step is identifying which type of fungus you have. There are several that affect St. Augustine grass. The Florida Master Gardeners can help you figure out the problem. Find your local office at Search.Extension.org. The following article discusses 2 fungal diseases that affect St. Augustine grass; perhaps you can figure out which you have. That done, you can find the right fungicide. Other prevention tips are included. https://www.abchomeandcommercial.com/blog/yard-fungus/