Q: What's killing Colorado blue spruce trees? My parents just had one cut down in front of their house, which made me start to take notice to others dying in the area. I have noticed dying spruces ...

We were pushing through head-high willows along a brushy caribou trail, five days into our week-long trek across Alaska's Noatak valley, when my hiking partner, Brad Meiklejohn, startled me with a ...

Many homeowners in northern Minnesota are asking the questions: Are my spruce trees dying? Should I be spraying something on them to help? Your spruce trees are not dying and it’s too late in the ...

Blue spruce (Picea pungens f. glauca), also called Colorado blue spruce, is a beautiful tree with blue-gray needles. Being colorful and relatively drought tolerant, it’s a favorite of many homeowners ...

In recent years, most all spruce varieties have been having difficulty fighting off the fungal disease Rhizosphaera needle cast. This fungal disease causes premature death and casting of needles of ...

Female (left) and male spruce cones at the Arnold Arboretum. It's a more common sight to see separate male and female cones like this. (Courtesy William "Ned" Friedman) Every spring the conifer trees ...

York is searching for a spruce tree taller than 30 feet to feature in Continental Square for its annual Christmas celebration ...

You would think with all the rain we had this spring your trees would look healthy. Most do, but some trees in Fort Collins are dying — and it's not the emerald ash borer killing them. There's another ...

I am getting crushed by emails asking what to plant once beetle-killed spruce trees are removed. Impacted readers are devastated, many emotionally (and well they should be), by the loss of so many ...