I recently moved to a new home and have 4 Maple Trees(type?) of about 30 years of age, 50 feet in height. The previous owners had a real thing for Ivy. I'm sure this is not a good thing but the Ivy is climbing the trees. All though I can't be certain that the Ivy is the cause, one tree is dead, one appears to be dying and the remaining two are definitely not healthy. Some of the Spring foliage is already dying. The infliction is accompanied by seperating bark on the higher branches, these are also the ones that are dying. Help! I am going to have an Arborist visit this week.