You could always treat it like kudzu. Rip out the roots and burn it then hope you didn’t miss any or it (kudzu) will come back with a vengeance

8

Cut it all the way down and give yourself 3 inches or so of stem to work with. Clear off any and all cut pieces then apply a herbicide to the fresh cut remainder of the stem. That way you don’t have to use large quantities and the plant cannot dilute the pesticide through its system

4

Start praying fr. Could try herbicide like follier spray but that stuff is also pretty nasty for the environment/run off as well

3

It’s extremely thick and bamboo like

1

pull it out by the roots (this is pretty easy to do but gets tiring with a large amount like this) and replace it with a native

1

oh no this plant is a nightmare. You have to be VERY careful removing it, any dropped leaf or piece of stem has the chance of rooting again. Burn it or let it dry dead somewhere completely off the dirt. Don’t let any fragments blow away.

1