Why are pattypan squash leaves yellowing?
Does anyone know what's going on with these pattypan squash leaves? The zucchini on the right is fine, but the pattypan on the left is yellowing, with spots. And it seems to be spreading to each leaf, one by one.
I don't see any bugs on it, and it's had all the same growing conditions as the zucchini, including organic fertilizing, etc. But it's looking quite different. Is this a normal color variation? I've never grown pattypan before and I only planted one seed as an experiment to see if I like it. If it's a problem, what should I do? Thanks for the input.