Hi Peter, we are currently using Goats to get rid of bramble. They keep blowing our minds at how well of a job they do at making it disappear. We use poultry netting to keep them contained and once shocked they respect the fence very much. It is labor intensive to put up the new fences every week but it gets easier and quicker every time. Once the goats have killed the bramble we are going to bring in pigs to clear completely and prepare ground for planting. Hope this helps, best of luck getting rid of it!