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When heat and drought stress trees, the consequence can be tragic

October 03, 2025
Douglas fir trees that died as a result of insect damage following heat stress are visible in the Willamette National Forest, Ore., Friday, Oct. 27, 2023. THE CANADIAN PRESS/AP-Amanda Loman

Biological Sciences Professor Jim Mattsson is quoted in this story by the Canadian Press about how dry spells can weaken trees, leaving them vulnerable to pests and fungal diseases that cause rot, potentially causing them to topple over. Read more .

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