priarie crabapple - my cats deeply scratched on the trunk of the 4 or 5 yr old tree before I noticed. we have wrapped a piece of foam around to protect. is there anything else we should? will the foam cause any problems to the trunk? thanks
It's best to leave tree trunk injuries exposed to the air to dry out and seal naturally. The foam that you have placed on the trunk could hold in moisture and/or provide access for insect. Instead replace the foam with a cylinder of hardware cloth so that air and light can get to the trunk but the cats can't scratch through the wire mesh.