Nutsedge: I just tried cutting it back to about 3" tall last week, then sprayed it (protecting all good plants around it) with Ortho's Poison Ivy and Tough Brush Killer (undiluted) and it worked. My aim was to kill not only the nutsedge I could see but the little nut at the end of the root, which develops into a pest the following year. I'll take photos when the rain stops. I also had to resort to using it for the Campsis Radicans, which had spread by underground runners, and the occasional Houttuynia cordata 'Chameleon' that still haunts me now and then.
