Weeping Willow Tree Fungus
We have a fungal growth on our weeping willow tree. Brown growth in about four locations along the trunk. Not sure if it's killing the tree, as it looks really healthy right now. It has to be sucking something from the tree. Right?
Beth and Neil
Can't really answer the question. Could you take a sample to your local agricultural extension office for identification and treatment recommendations? Could it be hardening sap oozing from a woodpecker hole?