Composting

You don't say why you don't add the roots to your compost, is it because of the size of the roots being uncompostable or for fear of club root? I add roots of most things to my compost as I have 3 x 1.25 cu mt compost bins, 1yr, 2yr and the 3yr old for current use, so most things will rot away in that time and if they don't , like CTM, the bits get chucked back to rot for another few years.