The dwarf Alberta spruce is an evergreen conifer with a classic pyramidal Christmas tree shape. This spruce tree variety is related to trees that grow 100 feet or taller. The most popular landscape ...

Bark beetles convert spruce tree defenses into more potent antimicrobials to protect themselves, but a fungus can neutralize ...

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck ...

A potentially devastating disease epidemic is attacking our region's most common evergreen trees. Colorado, Black Hills and Norway spruce have long been planted in yards and shelterbelts. Most of the ...

You may have heard that pruning spruce trees in the landscape is an important way of maintaining their health, size, shape, and vigor. But this is more applicable to deciduous trees than evergreens.

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 ...

Life on Earth relies upon an astonishingly short list of elements. Carbon, hydrogen, and oxygen compose the essential ...

It is so disconcerting to see a specimen tree going into decline. 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 ...

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