Herbicides generally do not work on bamboo. If they did, people wouldn't be so petrified about it's reputed ability to spread.

As for propagation, you can not propagate running bamboo from culms, but you can propagate many clumpers, like the Bambusas. Check out the link below for ideas. Good luck.

Here is a link that might be useful: Bambusa propagation

Ok, again kudzu9, thanks. What I have is a Bambusas, so my method should work? The only thing Im thinking is they may not root till spring time and that my turface is not packed. I keep filling up the void in the middle of the stem with water.

I'm not an expert on propagating Bambusas because they are a little too iffy to grow in my area. Propagation is always a crap shoot, but I think you have a chance of succeeding. I'd be interested to hear back from you on whether you succeeded. Good luck.

Your method is called double node propagation. I attended a class & this is what they taught: 1) only thick walled bambusas can be propagated via double node (textilis etc won't work), 2) cut 2 " below active node, 3) cut off branches & notch around the node, 4) go up to next node or 2 & cut again, 5) trim/prune branches & leaves but leave a few, 6) plant notched node a few inches below a combo of soil/mulch (heavy on the mulch), 7) keep moist/in shade. My hit rate is low. There are a lot better ways to propagate. Rgds