It is wonderful to hear from those who sent comments. So far, we have two yeses, one maybe, and one no. Yes, the blight appears late in the season, which is why they call it "Late Blight." Whether plants get it is a function of whether spores are present, how many spores float onto the plants, weather (it likes mild, moist weather), how healthy the plants are, and whether they are genetically resistant.
Whether you had it or not, it's a good idea to clean up all the fallen leaves and stems of old tomato, potato, pepper, eggplant, wild solanums, etc, and take them out of the garden for a few months in winter. Don't compost the stuff.
Let's do this: Try to test all of the varieties that are supposed to be resistant or "tolerant" that I mentioned in my last post, and see if they compare favorably to the ones that have no resistance. 'Legend' is available from a lot of companies, 'Juliet' from several. No source yet for 'Matt's Wild Cherry'.
I found another that is mentioned as resistant: 'Tommy Toe', a red cherry tomato sold by Seed Savers Exchange and Abundant Life Seeds. I would like to start some of these varieties and have them for sale at the City College Horticulture Department Plant Sale in May. II will try to find a student to do that, and will know in a week or two whether I can do it.
Truth is, that Legend is said by one source to be 5.3 in resistance on a scale of 1-10, and that isn't very good. If we found that 'Tommy Toe' or 'Matt's Red Cherry' had more resistance, we could try cross pollinating one of them with a non-resistant variety and growing the offspring next year in gardens that have the blight. If any of the offspring survived and had larger fruit, we'd be on our way to success!
Well, optimism is better than despair, which is what I have been feeling for a while.
More comments out there? Have you seen this disease in the San Francisco Bay Area? (see photos in the pdf) www.ctahr.hawaii.edu/oc/freepubs/pdf/PD-45.pdf