Answer: Unfortunately, wound coating will not help in this situation and there may in fact be nothing at all you can do except wait and see if any of them can recover. In cases where the bark is stripped all the way around the prognosis is not good at all, it improves in inverse proportion to the amount of damage. In the future you might consider protecting your trees with wire mesh. In the meantime, make sure the soil fertility is what it should be, take care not to over apply nitrogen, and water the trees if the season turns dry. I'm sorry about your trees!
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