
hate to sy it ?B?UT, if wht you have said I have read right then I am afrid the tree WILL die :(
And if it does you really need to cut it down within the year to stop branches falling off and hitting dogs (starting small and getting bigger)
But saying that, if you want to save the tree, then cut it off where ring barked and let it spout out gain. Will take Years and YEARS to look anything like a teree again and only then if you have someone that knows what they are doing pruning it!!!. Better to take it out and start again :)
Lea :)