Each time you cut one of the main vine’s shoots, 4-10 new shoots come up from the root system to compensate.
Keep cutting it back until fall. Makes it easter to paint the leaves with the systemic herbicide, at lower levels.
You must paint the leaves; pouring it into the root system alone, won’t work. The leaves will carry the poison back to the main rootball, and kill it.
If you’re still there, just do the painting as I suggested in #109, before frost, using a wad or paper towels or small brush.
I prefer directional dynamite
TANKS!