If you suspect you may have late blight, take a sample to your local Cornell Cooperative Extension office. They will be able to determine if it is late blight, another fungal disease, or some other problem.
I am hopeful xwe will not get late blight or if we do, it will be late in the season - maybe in September. I've already been enjoying cherry tomatoes and my first full sized tomatoes will be ripe this week. So, even if we do get late blight, I'm already better off than last year!
Anne Lenox Barlow has had experience in the agricultural field as a horticulture educator with Cornell Cooperative Extension in Clinton County. She can be reached by e-mail at firstname.lastname@example.org.