Hi Beeman, I surely hope I do not have what you've had. I've heard of Corky Root Rot, but it's certainly not been on the top of my list. Last year Root Knot Nematode came up as a potential issue, so I pulled a number of my plants. I did the analysis and didn't find evidence of the RKN problem. I think the Corky Root Rot would prefer cooler/moister conditions than I've had, but I'll keep it on my list of things to check for, especially if I have a chance to pull a plant, which I may soon.
Here's a pic from last year of the roots of one of my plants that went down to this problem:
http://www.tomatoville.com/attachmen...3&d=1338436905
Thanks,
Naysen