I'd mulch em too. Don't get it to trunk- leave little space. I haven't mulched many yet cause of time. Will be though. Friend of mine uses lime stone which is a good idea. 3 T posts around tree with regular cattle fence that's wired on really well- works great. Or some fencing with the smaller holes so no rabbits can get past is better yet even though screen covers trunk.
The residuals I'm spraying around mine- I do have a pretty darn good cocktail that covers the spectrum. I've got all these on hand from crops and native grass plantings, etc. But I do so much with trees i simply order these every year from coop & online. Plateau or Panoramic (used for native grass plantings). Atrazine. Dual or Warrant. Add one more like prowl or surflan. That's just me though. It's several things of course but every Herbicide misses some things and this seems to cover it all for me.
The residuals I'm spraying around mine- I do have a pretty darn good cocktail that covers the spectrum. I've got all these on hand from crops and native grass plantings, etc. But I do so much with trees i simply order these every year from coop & online. Plateau or Panoramic (used for native grass plantings). Atrazine. Dual or Warrant. Add one more like prowl or surflan. That's just me though. It's several things of course but every Herbicide misses some things and this seems to cover it all for me.