My potted Battagglia from BillM had a "v" close to the base when I bought it. One side of the "v" was as cut off by the previous owner and the other side is now 3 feel tall. I discovered that the little stump from the cut off piece is hollow and has created a hole that goes back into the trunk. After I cut off the little stump at the trunk I found that the hole goes into the trunk.

What's should I do with this hole? It's about 1/8 round. I don't know how deep it goes in but I think it goes in kinda deep. The trunk is about 1" round at that point

I thought of putting a wood plug in it and covering it with wax or growing it out until next year and cutting it back to the soil and using the cutting to grow new plants ... I dunno know I'm open to suggestions.

Hi Rich
If you can repot the tree and bury the hole and it should be alright.
I transplant all my trees this way.
Vito

it will close on its own, with the only concern being whether the time rquired and the resulting rot of the underlying wood is significant.  I would think a 1/8" hole woould close sufficiently fast to be of no concern. 

If concerned, you could wrap the area with parafin film to keep out gross moisture, or graft a piece of the same tree across the lesion, top and bottom, to speed healing.

Air layering would also be a solution, but perhaps a solution in search of a problem?  I wouldn't bother.