re: Freaking Bamboo

2% roundup plus 1% remedy ultra to the point of runoff when shoots get say 6 inches or so. You have to have enough exposed vegetation out to get enough chemicals into the plants to attack the massive root system. Remedy is a tree killer but will not leave a residual so you are good as long as you don’t spray it on desirable plants. That combination will take down a 40 foot oak tree. Chances are you will have to spray several times but it works