RE: Best red briar killer
We have what we affectionately call "red rippers" - they really establish in open fields after a crop like corn - (2-4 years). They are a Blackberry Species, I think - the stems are a ruby red. I've never tried to properly identify the species -
Maybe this is what is mentioned?
"Round up" worked OK - but we had to wait till Late spring until enough green -growing leaves made it good to apply.