Goutweed/Bishop's Weed/Snow on the Mountain--need help organically eradicating
My neighbor planted this voracious ground cover about 10 years ago and it's literally taken over about 20% of my backyard where it abuts the fence between our properties. I had a high schooler dig it all up the second or third year it invaded, but I didn't know you have to literally almost sift the soil to remove ALL root pieces. I am elderly and chronically ill. I do not have the strength to go out and patiently dig up every plant.
Apparently, even horticultural vinegar will not kill it. The only applied control I've read about that is supposed to work is glyphosate--RoundUp. Solarization isn't an option in many areas of goutweed infestation because it's wound itself around beneficial plants I can't move.
Does anyone have a "secret weapon" I could spray on the plants...or any suggestions?