One of the prized oak trees in my yard appears to be declining, so I can relate to your concerns. Your description suggests that your Colorado blue spruce (Picea pungens ‘Glauca’) is suffering ...

Jillian Patrie | University of Minnesota Yard and Garden Extension ...

There are three major types of diseases that affect blue spruce trees: needlecasts, tip blights, and canker diseases. The two ...

Rhizosphaera needle cast is a common fungal disease of Colorado blue spruce, which eventually kills mature trees. Once the foliage is removed, it will not regrow, even if sunlight now reaches the ...

White and blue spruce trees mainly grow throughout most of Canada. Englemann spruce, blue spruce, and Sitka spruce are native to the western states and Canadian provinces. Note: Norway spruce ...

Q: We have three large blue-spruce trees in our yard and over the years, each of them has developed dead branches on different parts of the tree. One of these trees was completely dead ...