“If Douglas fir trees aren’t growing back ... Foresters have been managing root rot for years, but a more epidemic spread could take a serious hunk out of the industry’s earnings, which make up a big ...

Laminated root rot, a native pest, is found in Douglas fir stands throughout the Northwest. If the disease doesn’t kill the firs outright, it leaves them weakened and susceptible to bark beetle ...

SPOKANE — A new study has warned that a fungus that devours the roots of Douglas fir trees in the Northwest could become a bigger killer as the climate changes. Laminated root rot occurs from ...

The culprit: Phytophthora root rot, a water mold that ... a year if Phytophthora is not properly contained. Douglas and Noble fir are the dominant holiday tree species in the Pacific Northwest.

The Douglas fir tree, estimated to be around 500 years old, two metres in diameter, and 58 metres tall, fell on Dec. 8, 2020 due to natural causes. “It was felled by laminated root rot ...