I have 6 plants in one row and 6 in the other since I have a trellis. 2 basil plants, 2 bell peppers, 2 squash, 4 cucumber and 2 zucchini. I think I may try and pull them up and restart. I planted these plants about 3 weeks ago and they do not seem to have grown much after the spots started to occur.
I will have to check some local nurseries around me to see what they have.
My basil and peppers are doing great. The others, well, they just get this clear looking film sometimes and then the next day there is the start of a hole right there. Or there is just the holes and rotting.