Spruce needle cast
I have a very large Colorado Spruce that is dropping green needles (in addition to the typical brown needles). I am attaching photos which I hope will be helpful. I have had three arborists diagnose it and now have three different opinions; I await word from a fourth and hopefully from you folks as well. First opinion: Tree is declining and is not treatable: Second: Rhizosphaera Needle Cast; Third: spruce bud scales. Would you like to comment or diagnose? I can send more photos if it would be helpful. Many thanks for whatever help you might offer! Patty Martinson
Hennepin County Minnesota
Thank you for your comprehensive answer to my question. It seems to me that probably the first opinion was correct - that the tree is failing, probably on several fronts. I tried to take some photos but they didn't turn out too well. I had the tree trimmed up last year, so the bare branches are pretty recent damage. I hate to lose the tree, but I think it probably has to go - if you have a different opinion please let me know.
I truly appreciate your help, the websites you directed me to were quit helpful, and all the information helped put it in perspective.
If many branches appear to be mostly dead or dying, it's probably time to let the tree go. However, without seeing the tree, this is just a generic statement.