Is this disease, pest or overwatering?

[Woodenzoo]

Thank you for the info Carolyn.
They seem to be doing much better now that they are outside. Perhaps it's because they don't have me to dote over them as much as when they were indoors.

Varieties do respond differently to fertilizer, to water, and to other things such as BER susceptibility in fact, so it doesn't bother me that it's only two varieties affected.

I'll try to keep this thought in mind while growing them out. I think once I get the plants to the size I'm used to buying, I'll be alright.
Thanks again Suze, Carolyn!
Cathy