I also had bamboo everywhere from the previous owner planting it. I called Clemson University (agricultural university) and they told me that since Bamboo is a GRASS, we needed to wait until the bamboo grows about 2 feet high & the first leaves have folded out, THEN you spray the leaves with something like Round Up (strongest blend), then wait about one week (for the leaves turn brown), then cut the bamboo down. We were doing it the wrong way...we were cutting the bamboo down, then spaying the weed killer in the bamboo hole...DON'T do that. Do what Clemson University said. It kills it. You do have to keep doing that for about 1 year (depending on how bad your bamboo growth is) to really get a handle on it, though. But it does kill it.