sudden oak death

: It’s easy to see how tanoak mortality from sudden oak death can have effects on the whole forest community. This photo was taken in Marin County, CA. Image by the USFS Region 5, Flickr Creative Commons.

Sudden oak death is plaguing California forests

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Last week, Deborah Zierten introduced us to sudden oak death, a nasty fungal disease (known in scientific circles as Phytopthera ramorum) that is causing the widespread  decline and death of tanoak, one of the most common tree species found in Continued

Tanoak mortality in Humboldt County. Photo Credit, Yana Valachovic, UCCE Humboldt County

Why are all the tanoaks dying?

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During a recent walk through Sam MacDonald Park in San Mateo County, I noticed many downed, brown-leafed tanoak trees amongst the towering redwoods. At first I wondered why the county would cut down so many trees, but then I realized Continued

Life on the leaf’s edge

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Henry David Thoreau wrote, “Nature will bear the closet inspection. She invites us to lay our eye level with her smallest leaf, and take an insect view of its plain.” His words eloquently describe a field of research that would Continued

Sudden oak death in Marin County, California. Photo by USFS Region 5, Flickr Creative Commons

Oaks and Ashes and Chestnuts, oh my!

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A recent article in the Observer, “Die-back kills off 90% of Denmark’s ash trees,” had me both remembering my childhood and thinking ahead to the future of the redwood forest.  Growing up in Britain, I remember the scourge of Dutch Continued

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