Steep, rocky large backyard a disaster
I have a large backyard that has a few fruit trees but is mostly full of weeds including the very tough licorice root and poison oak. It is sloped away from the house (good) but is steep and has rocky soil. Our (rental) neighbors yard overgrows into our backyard (poison oak, Scotch broom, blackberries, and what appears to be a hybrid pyracantha/apple bush (I know it sounds crazy but it looks like an apple tree/bush with large long thorns and grows in shoots and branches.) A royal mess and a shame since it could be a pleasant place to hang out. HELP!!! How do we get rid of the licorice and poison oak and weeds once and for all. Then... creative ideas are welcome. Thank you so much - this is an ongoing battle between land and man.