This Is The Season For Large Patch, The Lawn Disease Formerly Known As Brown Patch

Nov 12, 2017

Credit LSU AgCenter

The cooler weather we've been hoping for is finally here, and the forecast indicates it's here to stay.

This season's welcoming temperatures encourage specific lawn diseases and weeds. Large patch is a prevalent lawn disease this time of year. Large patch loves cooler nights and warmer days. Optimum conditions for this disease involve temperatures between 65 and 75 degrees at night and temperatures not above 85 to 96 degrees in the day.


This disease used to be known as brown patch. It's caused by the soil-born fungus Rhizoctonia.