I’m new to planting fruit trees. I planted my first apple and crabapple trees — all from NWC — in late April in Zone 4a (Minnesota). I used 5’ welded wire to keep the deer away and used hardware cloth to keep voles/rabbits away. The hardware cloth is 6-7” in diameter. I’ve read a lot lately about using pea gravel or crushed limestone around apple trees in order to keep small critters away, especially in winter. I know such rock is put around (OUTSIDE) hardware cloth or screening, but I’m wondering if anyone recommends putting rock INSIDE the hardware cloth or screening, as long as the rock is not touching the actual tree trunk. Thoughts?