Brown patch fungus is a common problem for lawns, especially in regions with warm, humid climates like Southwest Florida. While it is primarily known for targeting grasses and landscapes, this persistent fungus can also affect trees if left unchecked. In this blog, we will explore what brown patch fungus is, its signs and symptoms, how it affects trees in SW Florida, and how Coastline Tree Service can help you protect your landscape. What is Brown Patch Fungus? Brown patch fungus, scientifically known as Rhizoctonia solani, is a fungal disease that typically attacks cool-season grasses during hot, humid weather conditions. This pathogen