Apologies for sounding like an "invasive" broken record... my aunt in Omaha, NE has RO. I spend 3 days each summer killing enough to just keep it off the trail she likes to walk through her woods. She's given up on everywhere else. It probably is ok for pheasant and grouse, (and hunting dogs) but no human would want to walk through it (multi-stem, thorns). There are far better alternatives.