[constGard]

This struggle reminds me of my personal battle with morning glories, nadinas, and bermuda grass, and a neighborhood effort to remove several ailanthus from along a local creekbed. Rhisomatic weeds are just a style of plant that we've never developed a good strategy for, outside continuous poisoning with something like glyphosate.

If you do ever see an ailanthus seedling, dig it out if you can. They're terrible and I've even seen them crowding out young redwoods here in northern CA. https://extension.psu.edu/tree-of-heaven

[ohthatsnotright]

Dig out every single sapling too. I despise those trees so much here, they take over every thing and smell awful. Their root system when they're larger is expansive, I had to use a backhoe to dig out enough of the root system to get it to stop spreading and now it's a non-stop battle digging out the saplings. Previous owners loved the look, or it showed up by accident, but a 30' tall tree of heaven is no joke to exterminate.

[dendrite9]

I think in college I rented a house where ailanthus was growing up through the lawn. Every year we pulled starts out and the foul odor in that description makes me think that was it.

[duckmysick]

I'd like to add horsetail to that list.

https://www.cabidigitallibrary.org/doi/10.1079/cabicompendiu...