To date, the oldest CMT recorded is a western redcedar that had its bark removed in AD 1415. Until relatively recently, Douglas-fir CMTs were not known to archaeologists. In part, this is because old ...

These are some of the identifying characteristics of the Douglas fir tussock moth caterpillar ... more susceptible to other ...

Canopy spiders thrived in Douglas-fir’s dense branches, while arthropod diversity is reduced due to the distinct bark structure. Birds faced mixed fortunes—some species found less food in ...

An insect called the western spruce budworm continues to be the most widespread forest pest in Colorado, but a bark beetle ...

says Doug fir needles flashing red is one early sign of fir-borer infestation. Another dark omen: Clear globes of sap-like goo — “pitch jewels” — emerge in the bark, small enough that they ...

As climate change pushes Europe's native forests to their limits, the North American Douglas-fir (Pseudotsuga menziesii) is emerging as a potential ...

The western spruce budworm primarily affects Douglas-fir, true fir and Engelmann spruce trees. Consecutive years of budworm defoliation leave drought-stressed trees susceptible to attacks by bark ...