Guys, thanks for all the suggestions and input.
I am up in Canada so the ag. extension isn't an option. There are a couple of good nurseries around here that I could try and I know some tree experts I will also check with. I haven't dusted for spider mites yet - I will do so soon.
TURFLORD, this woman is pretty mean -- she'd definitely take offense to your butt-ugly comment!
In the meantime I have applied our Turbo SE liquid organic fertilizer 0-0-4 which is made from seaplant extract - as you guys have said I don't think anything that is brown and dead right now will come back but there is some new growth coming in from underneath that I hope I can stimulate.
Any more ideas from the other tree gurus on here?
Cheers all, GL