I was also going to suggest renting a family of
. Like Chef, my other suggestion was concentrated RoundUp. Cut a living cane leaving around a foot remaining above the ground. Fill half way with concentrated RoundUp. Cover the cut end with plastic wrap or a plastic bag and "seal" with a rubber band or zip tie. (Keeps the cut end from callousing over, the liquid from evaporating, and helps prevent animals drinking it.) You may need to repeat the process with numerous canes for such a large stand.
Hmm, you might try renting some goats, too. Don't know if they'd eat bamboo but they seem to eat pretty much anything.