There are sseveral mikes so me being one of them I'll give this a shot. If any part of the tree is dry and brittle then that part is probably a goner. We use a trick to determine what parts are still alive. Scrap a small piece of bark with your fingernail. If you see green that point is still alive. If its brown its probably dead.

Mike

Thanks it's been done. There was some green,

Can the brown part come back if the tree is fertilized?.

No. Once it dries and turns brown it is done

Thanks mike. I guess that it will travel and the tree is dead right?

no not necessarily is the whole tree is dying. Just start cutting back until you get to healthy wood. It very well could back bud from that point.

Mike

Thank you. I will try it.

Thank you. I will try it.