We bought our house last July in SW Portland and there is a mature cherry tree (about 50 feet or so tall) on our property that has a section of peeled bark on the stem starting about a foot above the ground. The peeled area is southwesterly facing and seems to have occurred a few year ago. Despite the peeled section the tree seems otherwise healthy - there are abundant leaves and cherries and new sprouts are appearing at several points up the stem and also right at the base. We're wondering if the peeling signifies long term serious disease. Do we need to take down the tree? An arborist visiting our neighbor has suggested so. Thanks for your help!