The iconic Sitka Spruce near the entrance to Yaquina Bay State Recreation Site is set to be removed or significantly cut back in June due to widespread decay.

The aphid, known scientifically as Elatobium abietinum, extracts moisture and nutrients from older needles on Sitka spruce trees, causing them to turn yellow, red, and eventually drop.

T he "Tree of Life," an ancient Sitka spruce at Washington's Olympic National Park, is slowly succumbing to the ravages of time and nature. This tall, gravity-defying tree has enthralled tourists ...

The Oregon Department of Forestry is assessing damage done by the spruce aphid along the Oregon Coast after an outbreak in Yachats earlier in 2025.

Study reveals how a tall spruce develops defense against hungry weevils Date: July 10, 2023 Source: North Carolina State University Summary: A study has identified genes involved in development of ...

The name speaks for itself — Sitka Spruce Park on Amaknak Island has dozens of spruce trees, creating a rare forest-like sanctuary. Regional lands are known for their tundra valleys filled with ...

Analysis: as a species shaped by the last ice age, the Sitka spruce may provide key information about how trees respond to climate change. By Susanne Barth, Tomas Byrne, Niall Farrelly, Teagasc.