I HATE THIS STUFF! I haven't done Ornamec recommended here. I've tried Round-up and it came back up bigger. It laughs at weed barrier. Just spent 6 hours lifting pavers and pulling the rhizones or whatever they are. Any fold in the fabric, it grew like a cable!! It grew over, through, in between the weed barrier.
I do this twice a year, and still can't stay ahead of the devil spawn weed. It's right next to my organic vegetable garden. And spreading.
I think I just needed to vent...