Yellowing of Blue Spruce Tree
We just trimmed this tree by cutting a lot of the low branches. Now we're concerned about the yellowing of the under branches. Any advice? Thank you! Francie Weeks, Towson
Baltimore County Maryland
If you can attach a photo of the tree to a reply, that would be helpful.
Blue spruce struggle in the environment of Maryland and do not live to great age. They are susceptible to a couple of diseases when stressed. Interior needle browning is commonly an indicator of root dieback, caused by drought or disease.
Here is helpful info from our website: http://extension.umd.edu/hgic/cytospora-canker-spruce
Should we put something on the cuts to reduce chances of fungus? Thank you!
No, we do not recommend applying anything to the pruning cuts.