We are almost 100% organic on our farm, including our lawn. The only exception I make is using Roundup where I find Poison Ivy as I’ve yet to find anything else that kills it. It seems birds bring it in or it would be long gone (sigh).
If anyone has anything organic that kills it, I’m open to trying it, but continual mowing or cutting seems to just make it spread more and it’s next to impossible to take boiling water to the farther reaches of our farm.