Brown Patch causes a temporary discoloration of St Augustine turf.
Those brown circular patches in your St Augustine turf grass lawn are probably brown patch. Brown Patch forms distinct circles or joined lobed circles of dead leaves with a “halo” of yellow grass. It does not kill the turfgrass, only effects the leaves. The results is a “bad haircut” look to the lawn.The pathogen is a soil born and can not be eliminated. The Good News: Except for the worse cases, Brown Patch can be controlled with good cultural practices! With the cooler temperatures and wetter soils, Brown Patch is active in lawns in Tampa, Plant City, and surrounding areas.
Cold vs. Deadly Disease
My experience with Brown Patch has me categorizing it as a “cold” as opposed to a “deadly disease”. I think the “cold analogy” is a good one because:
For more info click the link below.