Why not go with Gly-4 then? It's way less expensive.

steph, since this presents a health issue which could get even more serious, don't think you have many options. Once you get it all GONE you can resume your scruples against evil Monsanto. I've used stump killer - one or two drops applied right after cutting - with success. Got totally rid of the poison ivy and privet, the invasive evergreen kudzu.

Rosie