Burdock removal from my garden.? My yard is full of burdocks (the bushy plants that look...

My yard is full of burdocks (the bushy plants that look resembling rhubarb). It's worse in my garden (it used to be a horse feed pen). I don't want to spray them with vegitation assassin, as they are IN my garden. I already doused them with vinegar, which did zilch. The roots are REALLY deep and knotty to get out.
HELP!
What do I have need of to seize...
Answers:    All you can really do is verbs it. Get as much root as you can but don't kill yourself. It'll come rear but weaker and you'll have to verbs again. It isn't as persistent a plant as some, resembling thistle, and you can knock down an infestation pretty okay over the course of a couple of seasons. Keep up on the babies because its greatly easier to dig them past they get huge. Never ever consent to them go to pip.
I had various enormous ones and It be really a drag but I did eventually pretty much eliminate it. There's no straightforward way lacking chemicals though, and I wasn't going to use them so I just kept digging.
Best of luck to you!