From Houston Texas, have a lawn with St. Augustine
One morning noticed this patch in the back yard. It's got an irregular shape, not really a central clearing or anything. I was told we might have been watering too often, had a fungal problem.
So stopped watering, applied anti fungal, and it is still there, no better. Now there are other parts of the lawn doing the same.
Up close when I dig through the leaves, there are no bugs, or anything notable. Any ideas and suggestions?? I don't want to lose my beautiful back yard.