"Tree Fences" are what I use. I started with old page wire fence (sheep fence), but ended up buying a new roll. 47" tall. I make them into a circle(cylinder shape, actually)that's about 36" diameter. Tree in the center and two 6' fence posts opposite each other with fencing staples to hold fence in place. Still too much work (less than what you did, but...). A good long term solution. I haven't figured out any other way. Rabbits are also a big problem here,too. Put the smaller holes of the mesh at the bottom.