I have a common escallonia just over a meter high and was thriving, eventhough in a very exposed site. Now its practically dead with most branches totally bare and a few with dead leaves on. When showing it to a friend recently he said his escallonia hedge has a number of plants similar to mine. He also lives in Bantry. Could this be “Sudden Oak Death” or what can I do. There are still two or three healthy branches remaining.