Can anyone assist with this? I recently received three squash seedlings (Zucchini, as far as I know, though one was erroneously labeled “beans” and the other had no label) from an event, along with a bean seedling. One squash has some little thin dead patches on its leaves, and now so does the other squash, the healthiest of them with a nice flower. The beans had the same issue. Planta said I over-watered them, and to let them dry out, but the fact that it appears to be spreading is scaring me. It doesn’t appear to be powdery mildew, although the nursery cardboard whatevers did get a moldy spot on them. I removed that spot and the containers and replanted them in larger containers, used fertilizer per Planta schedule, etc. (Planta diagnosed the one squash with “never been repotted” which is very much not true.) These plants have only been in my care for maybe two weeks, I’m unsure how old they are.