Does lime help?

I applied lime last fall.

Any other thoughts, please?

Hope you get an answer. I've had the same issue (plus some pythium) for many years here in MD. Unique to my soil and neighbors don't have it. Even stripped out sod two years ago. Now worse than ever. The corn meal thing's of no use in this situation and I've tried everything else both organic and chemical.

I hope so also.

I mowed today, (caught my clippings), and my lawn is a textbook classic Brown Patch haven. It looks like gasoline has been spilled in different spots all over the yard, of course, some areas larger than others.

Once brown patch is in full swing, there isn't much you can do to stop it. Even the expensive fungicides don't do a good job. If you have had it in the past, you need to treat for it before you see it. Aerating right now isn't going to help and will only stress the grass more. Since you already chose a fungicide, that is pretty much all you can do right now.

The best thing you can do is overseed in fall with a Brown Patch resistant grass. You should be able to find Tarheel or Tarheel II tttf locally and it ranks right at the top in terms of brown patch resistance. That doesn't mean you will never get it, but when you do, it should be a smaller problem and the grass is more likely to bounce back. If you have a compaction problem, you should aerate the heck out of the lawn before overseeding.