I'm into tools. Last yr i wanted to eliminate the berumada grass in my yard. 1500sq ft. 😕Do i want to pay 2 grand or buy a 900dollar roto-tiller? Well ! I now have a roto-tiller when i need it. Next on my list is a chipper. Feed the soil. They make some chain heads to go on weedwackers that would do your job! Of course bobcat could get roots and all. Do you want a weedwacker??? 😎😎😎