Hack it down low and keep mowing the site to starve it out. It will keep trying to send up new shoots each year until it exhausts itself (no sunlight = no food = no energy).

There are a lot of other methods, this is just he one I can remember reading about.

that is one way for sure. The other is to get a rototiller and pull all the rhizomes out. I did this one several years ago.

Just wondering if you still had any of the Bamboo you were trying to get rid of. I have golden Groove and i live in Ny myself, over by Buffalo, Ny. Just thought I'd ask, thanks