Cedar trees dying - Ask Extension
I have several very large and old western red cedar trees drying from the top down. Can you tell me why?
Knowledgebase
Cedar trees dying #847442
Asked August 26, 2023, 8:16 PM EDT
I have several very large and old western red cedar trees drying from the top down. Can you tell me why?
Multnomah County Oregon
Expert Response
We are having a regional issue with western red cedar dieback. Here are some links.
https://ppo.puyallup.wsu.edu/plant-health-concerns/redcedar/
https://storymaps.arcgis.com/stories/1405dab5f59246aa83849ec43f72b15a
We believe it is due to increased summer temperatures combined with drought. There are a number of folks working on the issue, and the consensus definitely points to weather patterns of the past 5 or more years (hotter and drier).
We have been unable to detect a specific pathogen or insect associated with these symptoms, so all the evidence points to weather patterns.
https://ppo.puyallup.wsu.edu/plant-health-concerns/redcedar/
https://storymaps.arcgis.com/stories/1405dab5f59246aa83849ec43f72b15a
We believe it is due to increased summer temperatures combined with drought. There are a number of folks working on the issue, and the consensus definitely points to weather patterns of the past 5 or more years (hotter and drier).
We have been unable to detect a specific pathogen or insect associated with these symptoms, so all the evidence points to weather patterns.
