Beginner Gardening: Houttuynia Cordata or CHAMELION PLANT need to kill, 3 by pirl

pirl wrote:
Diana - it's nice to meet another victim of this scourge.

I did write to joelcoqui and gave my advice. I do use Poison Ivy and Tough Brush Killer but not according to instructions so I felt it wise to do so privately.

My California friend advised me to cover both areas with black plastic (as the highway system does there) and that's what we did but only after digging deeply the entire 513 sq. ft. (under very old pines with huge roots) to remove every sprig I could find. I'm still diligent about searching for an escaped pieces.

Photo #1 before I started (again) removing the evil weed. This is just a small part of the area.
Photo #2 all ripped out but it was working more than 8 hours every day to dig it out.
Photo #3 "It's back". I continued digging.
Photo #4 Can you spot the thick white roots? I had to dig up and pot up every daylily - a few hundred of them.
Photo #5 Just removing roots from this spot took many hours

Next I'll show the black plastic episode.