I have bits growing from my compost that were expectantly well composted in the plastic Dalek composters . So I don't recommend composting as a way of killing it .
If you strip it off in late summer / early autumn & leave it a few weeks to dry a little more It burns very well once you get it going .
It's pointless spraying SBK on a mature plant & a total waste of time & chemicals .
Treating any new growth to a sprayed on dose of SBK mixed with diesel is a recommended way of killing it off as the plant is at it's weakest . .