Hi Charles
I have been taking your advice about leaving roots in situ, partly for the reasons you have given, but also to avoid putting any soil on my compost heap. I have some problem areas with onion white rot and don’t want to spread the soil-borne fungus into the heap and then, via the compost, to other areas of my plot. Does this seem a good idea or I am being paranoid?
Best wishes, John
PS I posted this in a runner bean thread so perhaps it better to start a thread in diseases.