In October I planted a Norway Maple (Acer Platinoides). The central
shoot of the tree had already been pruned by the nursery (a reputable
online company). There are now about 5 shoots growing from the top
(see he http://bit.ly/4C28vF). It shows the 5 shoots and the
remnants of the central shoot. The part of the tree in the photo is
probably a bit over 4 feet high.

2 questions:

1. Do I need to do anything to treat the remnants of the central
brunch, to stop it rotting / deteriorating?

2. There are 5 shoots coming out at the top. Should I prune a couple
of them out to allow the others room to grow into main branches?

Michael