From the gist of this thread, it seems suicide is also another option.
Charby, I'm thinking that if I apply Tordon I will carefully inject a bit into the cut off stump of each individual bamboo cane, not just spray it around. Probably 100 or so canes, so it will be tedious, but no more tedious than a digging and filling a trench and vinyl block inserted in the trench.
In your opinion, do you think carefully doing that will ameliorate the killing of other stuff? There are several nearby trees, some other woody plants, berry vines and other wild growing stuff I leave alone as I like the area a bit wild. What I read about Tordon is that it is effective, but I'm leery of overkill.