blue spruce tree
the end of the needles are turning yellow. It might be rhizosphaera needlecast. how to correct it.
Mackinac County Michigan
Rhizosphaera does not generally cause needles on blue spruce to turn yellow. Is it possible for you to send two photos; one shot of the entire tree and one closeup of needles that are turning yellow? That will help me identify the problem.
Also, would you please provide some additional information to help diagnose the problem. How is this tree watered - rain or irrigation plus rain? If it is irrigated, how often does this happen? How would you describe the soil: sandy, loamy or clay? Has anything changed where this tree is located in the past year?
Thank you for your further assistance.