Dear Paul, I did not mention composting the leaves. Just eating them is not good for you at all; and oxalic acid is the main cause of gout!
I am just saying that the leaves have a great benefit to get rid of aphids and other pests, natures way. No unnatural chemicals at all, i.e. organically.
Plus if it does work to stop potato blight, is a good thing I think.
Kindest regards.
Neil.