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 ...

Spatial patterns of defoliation of Norway spruce (Picea abies) in southern Norway were investigated by stratifying plots according to tree age, elevation and relative degree of defoliation considering ...

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 ...

A third-year university student has found the world's oldest-known red spruce tree â and he's not telling where it is. Mount Allison student Ben Phillips found the tree while walking along the Bay of ...