St augustine brown spot
What is the best way to control brown spot now that it is starting this fall.
Denton County Texas
First of all, make sure that you have brown patch. This is a good description of it. http://plantdiseasehandbook.tamu.edu/landscaping/lawn-turf/sorted-by-names-of-diseases/brown-patch/
This publication also contains a good description and has some control options. https://aggieturf.tamu.edu/wp-content/uploads/E-633-Large-patch.pdf
You'll notice that it is the same disease referred to as brown patch or large patch, a fungus called Rhizoctonia solani.
Let me know if I can assist you further.