I think the leaf on the left has white speckling on it. A close up might help with this but, again, I think that this could be a problem with spider mites or similar infesting your plants. The yellowing leaf on the right is likely a progression of these symptoms to the point where nutrients are not reaching the cells of the leaves beyond the leaf veins due to the damage caused by whatever is feeding on the leaves. Did you inspect all of your plants for signs of mites as I suggested in your bean question?