The more I cut, dig and chop the more they grow and spread. I'm about to start chemical warfare. Will Roundup kill them for good?

NO....but a very strong mix of Chlorine granuals and water will......

if you cant get Chlorine....just cut them off near the ground and pour Diesel all over them till it soaks in....leave for a week or so, do again if it rains.

They will be definitely DEAD after that.

I am not sure, but I think they're weeds

I am not sure, but I think they're weeds

They are weeds for sure but they are tough weeds. If you let them grow the tough wood stems will get more than an inch or larger in diameter. In fact one of them is in a rose bush and it has been cut off so often that where I had been cutting it off is more than two inches in diameter. I wish I could get productive trees that were that hard to kill.

I am not sure, but I think they're weeds

They are weeds for sure but they are tough weeds. If you let them grow the tough wood stems will get more than an inch or larger in diameter. In fact one of them is in a rose bush and it has been cut off so often that where I had been cutting it off is more than two inches in diameter. I wish I could get productive trees that were that hard to kill.

"I wish I could get productive trees that were that hard to kill." Yer, why is everything we grow for profit needs insecticide, herbicide, fertilizer and water yet the dam_n weeds grow better!

"I wish I could get productive trees that were that hard to kill." Yer, why is everything we grow for profit needs insecticide, herbicide, fertilizer and water yet the dam_n weeds grow better!

Exotic plants, ag crops will always be a challenge. Hunters-gatherers may be more in tune with natural ecosystems. -- where there is anything left to hunt and gather.