what is brown patch fungus
Brown patch is a turfgrass disease that is caused by the Rhizoctonia species fungus.This turfgrass disease is most common Brown patch can be found in all of the cool season turfgrasses found in the United States.rown patch is most devastating to: Bentgrass (Agrostis sp.), ryegrass (Lolium sp.), Annual bluegrass (Poa annua), and Tall fescue (Festuca arundinacea). Brown patch is also found in Kentucky bluegrass (Poa pratensis) and Fine fescue (Festuca sp.) but this is rare or does minimal damage.