Hey guys, new member Steve here. My former St. Augustine lawn (I don't know what exact version of grass) in The Colony, which was full & beautiful the past few years, plus this past spring, apparently either got that root rot I have read y'all talking about here, or else (my neighbor thinks) had heavy grub worm or chinch bug damage. Nonetheless, it's all thatch, and is crackly-brown now, from mid-August thru today. My questions revolve around next year, what to do. I have never had a lawn die so completely, regardless of water, sun, heat, or anything. Do I need to dig up a patch and have a nursery look at it, to tell me what may have killed it, or will I ever know? What to look for? Then, do I leave it sit as cover over winter, wait 'til spring, roto-till it up, and re-sod the whole danged area? My lawn used to be the most full lawn in the block, now it's the brownest & crackliest in the neighborhood. Any thoughts you have will be read, absorbed, contemplated, and acted-upon. Thanks.