My question, about eradicating bamboo, is similar to this one but that asker said his landscape is large, at 1-acre, and hillside in Oregon. I live in a single family home with a property footprint of 3300ish sq. ft.
I live in Orange County in southern California, so the climate is mostly dry, quite hot in summer, and mild winters with 2 or 3 months of rain in winter. I'm a first-time homeowner, and disheartened that the bamboo that the previous owner planted seems to have spread invasively. It was planted in our back patio, which is mostly covered with a thick 8-ish inch single-piece of slab (not individual tiles) with small openings around some of the edges, seemingly for small pockets of plants. The bamboo was planted in one of these openings. Although I knew bamboo spread invasively, I took no action, stupidly
hoping that it'd just behave by itself thinking that the previous owners knew what they were doing and wouldn't plant anything with destructive/invasive potential. One year later (this year), I noticed bamboo sprouting up from some of the openings away from the original planting site, meaning the roots had spread around possibly under the slab. A few weekends ago, I uprooted the bamboo from the original planting site, pulling out lots of the roots that had indeed spread away from there. But I couldn't work on those that had spread outside my property or under the slab. I thought I'd done a good job because I'd pulled out so much of those roots. But now a few weeks later, I see more shoots popping up.
I'm disheartened because I think now that nothing less than 100% eradication can eliminate the invasive spread. Is there any specific advice the community can offer? Should I call a landscaping company to take care of this? Is "bamboo removal" a service they typically provide? Or should I use some form of herbicide over all the soil patches where I don't want the bamboo anymore? Or should I stop watering for several weeks (or however long)? Or must I resign myself to recurring battles with newly-rising shoots every few weeks? I'm not (yet) worried about the bamboo shoots damaging my floor or anything like that; I just hate the idea of an invasive plant running roughshod through my property, potential damage it could cause, hurting the home's resale value, and the ongoing maintenance, etc.
I'm open to, and grateful for, any/creative ideas. Thank you.
Thank you to commenters and answerer. Updated with pictures.
It's been a couple weeks since my original post (sorry for the delay, to those requesting pictures). Since then, shoots have started coming up in new locations; I can't help but anthropomorphize this bamboo, which makes me think the bamboo is getting "panicked" or "desperate" now that the original planting site has been dug out - which also makes me think of John Carpenter's "The Thing" when the creature went crazy after it'd been found out. I've tried to be diligent by ripping out these new shoots and as much of the rhizome system as possible - but again, the "floor"/"slab" (see pictures) is just too big and thick for me to attempt getting to the rhizome system that's traveled underneath it. I haven't yet, but I will search out glyphosate, as suggested by answerer @stormy below.
One worrisome aspect is that the bamboo has spread outside my property, i.e. under/outside my fence...so even if I maintain/eradicate the bamboo from within my property, I'm worried that the rhizome system that's gone outside my fence could spread back in...meaning this could end up being an unending cycle of the rhizome system spreading in and out and in and out of my property. Sigh.
Sorry again for the delay between original posting and update, but if these new pictures inspire new thoughts/suggestions, I'm grateful for them.