Quote History Quoted:
The bark begins to peal then the Leaves slowly fall and then they die. They looked great untill last Year then they started to look stressed then this Year 3 died and the 4th will be dead next year if I don't do something. Ground hasn't changed any and they had plenty of water. These are young Trees 6 years and younger.
View Quote
Did they green up and then start the decline fairly quickly or did they not start dying until later in the summer?
I know last winter was really hard on fruit trees if they were pushing their northern boundaries. Winterkill can sometimes happen like that, green up and then die back quickly in the spring.
eta: I just understood they started looking bad last year late. Probably not winterkill.
Did you amend the hole with good soil or fertilizer or something when you first planted them? I planted some trees once in a clay area, added good soil to a fairly large hole and let them go. It took a few years before the roots got out to the bad soil and the trees just withered away.