At least Serenade is listed as OMRI, so I guess that's something in it's favor. And actually everything I've seen about early blight says it's a fungus and all recommendations are for some kind of fungicide. It's definitely some kind of disease on these plants ... the black spots didn't show up in the photos that much, but they're present as well.
No, the pots were not sitting on the ground ... I had them up on a shelf in that tray until they were big enough to get closer to direct sunlight. I haven't sprayed anything but who knows what has been sprayed around close to me.
I may just give up on the tomatoes for at least this year. I suspect even starting new seeds would result in the same thing.
Thanks for your input. I'm just going to sleep on this for a night or two and then decide what I want to do.
