I know 2,4-D + 2,4,5-T will kill anything that resembles a tree. My usual for bamboo is hexazinone or imazapyr. I have had to kill off lots of escaped bamboo. Constant mowing or deep excavation were not options in most situations.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738