Lawn Academy

Red Thread

Red Thread

Laetisaria Fuciformis

Red Thread causes an undesirable appearance, but does not cause long term damage.


Water deeply but infrequently while preventing moisture stress and apply a light application of quick release nitrogen.


Avoid late-night watering, reduce shade and increase air flow, and maintain proper cultural practices, such as cleaning off mower to stop the spread of the actual disease itself.


  • Reddish-brown patches
  • Antler-like strands extending from grass leaf tips.
  • Up to 8inch spots appear in lawn


  • 60-70°F temperatures
  • Low nitrogen
  • Cooler weather in spring and fall
  • All species of turf grassare susceptible