Gray Leaf Spot Turfgrass Disease
Hot weather diseases (over 75 F)
When will it appear?
- End of July-August
- Hot, Humid Weather
- Most severe in newly established plantings
- Prolonged hot (82-90F) weather and wet cond.
- Perennial Ryegrass
- St. Augustine, Bermudagrass, and fescues
- Turf may have a gray cast
- Irregular patches of scorched turf
- Leaves: lesions are brown to gray, with purple to brown boarders
- Blades may have a twist at the top
Can you see the fungus?