Could be spray damage.

What was the temp when you applied it?

It was late in the day, I'm guessing mid 70s maybe. I saw damage prior to the first spraying. My 'yellow' tomato plants all look shot. The krims were huge and the center seems gutted in a big way. A horticulturalist thinks it is a fungus and I'm awaiting a call from Cornel co-op on their opinion, too. This morning was the first morning that the plants were not covered in dew. What strikes me as odd is the white tomato plant has long thin stems and they were 'sagging' badly yesterday. Today the stems feel much much firm and are more upright. I'm wondering if the Torre tial downpour of a week ago and then 3 straight days of high heat and humidity is the root. The local co-op said there were no reports of blight locally, but about 75 miles to the northwest.