Spots on maple tree trunk and branches - Ask Extension
Our 20 + year old maple tree has developed white spots on the trunk and branches. Some of the lower branches have started to die and had to be cut off...
Knowledgebase
Spots on maple tree trunk and branches #241045
Asked May 01, 2015, 8:22 PM EDT
Our 20 + year old maple tree has developed white spots on the trunk and branches. Some of the lower branches have started to die and had to be cut off. Is this lichen (as we had assumed) or is this something we should be treating or worried about?
Ramsey County Minnesota
Expert Response
Definitely not lichen, check http://homeguides.sfgate.com/maple-tree-diseases-white-spots-bark-51963.html for more information.
