What propagates new growth is chunks of viable rhizome, not tiny pieces. Maybe you got all the viable stuff, maybe you didn't. If you see some whipshoots coming up next year, dig down and remove the piece of rhizome chunk you missed; no big deal. Chemicals are only good for poisoning your soil and the groundwater, not killing bamboo. Too bad the bamboo was allowed to get out of control...it's a great plant if you maintain it properly.

Thanks for the reply. I am not sure how big of a piece of the rhizome it takes to produce more growth. Had considers running the soil through a screen of one inch or smaller mesh. That is pretty well where I am at. I will probably remove all the loose soil and install barriers then refill the area with top soil.

Again Thanks

Jim

jcurts-
No insult intended, but you're causing yourself a lot of work by being a little too scared by the bamboo. There are a lot of urban myths about bamboo, and you've got an out-of-control grove, so it's easy to believe them. However, bamboo are not like other invasive plants: tiny pieces in the ground will not regenerate. In addition, bamboo roots take a while to get established, so, even if you left foot-long chunks of it in the ground, there is a good chance most or all them will die. If there are viable chunks, you'll know next spring, but the shoots will be tiny and the roots easily removed. It would take several years of neglect by you for any viable pieces left in the ground to even start re-building their root structure.

Save yourself some time and energy. You do not need to install barrier if you've removed most of the bamboo, and you do not have to screen the soil for small pieces. I grow lots of bamboo without barriers, and occasionally I relocate small groves. I've never had anything major come up afterwards. I have had a couple of spindly whip shoots appear the next year, and that identified for me where remaining chunks of rhizome were. Once I took those modest chunks out, the area was bamboo-free.

Again, thank you for your advice and support. I did a final tilling of the area today and found only a few small chunks.

With your help I feel the job is complete and will move on to other projects.

Jim

I think you got it licked. If there is any regrowth, it will be trivial and easy to completely remove.