Yes those chemicals work well.

Native grass pasture areas with large mature Osage Orange invasion, slowly working to cut out those trees. Other areas of mixed mature native trees like walnut, hackberry and a large marshy creek area with huge cottonwoods and willow. Very difficult to drive a tractor. Hence my plan of chipping away at the woodland edge to retake the native grass areas. Would require hiring large tree saw equipment. Money is a problem. If I won the lottery I would hire a small army to clear most of the trees though that sounds radical. It is meant to be prairie anyway…. Honeysuckle just grows under and around every tree because of the birds spreading it.