Colorado spruce disease

Asked May 11, 2016, 7:44 PM EDT

My 25 year old Colorado spruce has a white powdery looking mildew on the inside on the trunk and branches. Is there something I can do to get rid of it? Would a fungus spray help? Should I cut out some of the lower branches that have lost a majority of their needles? Thanks for your help. The tree is huge and I hate to loose it.

Dakota County Minnesota spruce diseases

1 Response

`Diagnosing disease is challenging without seeing the tree and using magnification to look for fungal spores. I can provide information about the two most common diseases of spruce. One or both could be infecting the tree. The diseases are Cytospora canker and rhizophora.
https://www.youtube.com/watch?v=TnFJn6lbDwM
http://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-diseases/spruce-diseases