"Eigenvector" expounded:

I can give that a try, anything is better than pulling, snapping the root
off - then watching the root spawn 100 more.

I always use a fork and get beneath the main plant (if I can find it,
otherwise any end will do) and gently pull it. If you get a good grip
on the stolons you can get quite a few of them at once. Tedious but
worth it to get every last bit. Each year there are fewer and fewer
sprouts.
--
Ann, gardening in Zone 6a
South of Boston, Massachusetts
e-mail address is not checked
******************************