Field Note · July 23, 2026
How to Identify Fungus on a Tree
Conk, mushroom, or mildew? A practical guide to telling a harmless recycler from a serious wood decay fungus, and why location on the tree matters most.
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Arborist Notes
Field notes on trees, fungi, and forest health from the Sierra Nevada foothills.
Field Note · July 23, 2026
Sudden Oak Death in California: What It Is, and Where It Actually Occurs
The disease that killed millions of coastal oaks, why the Sierra foothills have largely escaped it, and what is actually behind oak decline here.
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Field Note · June 17, 2026
Unveiling the hidden world of Cryptoporus volvatus
The hidden world of the Hidden Pore Fungus
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Field Note · June 24, 2026
Morels: The Sierra Nevada's Most Elusive Mushroom and Why Forest Management Matters More Than Fire
How are morels and trees linked.. its complicated
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Field Note · June 24, 2026
Bioluminescent Mushrooms in the Sierra Nevada Foothills that may harm your tree
Dull orange Omphalotus olivascens fruiting from the base of an Interior Live Oak in El Dorado County.
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Field Note · June 11, 2026
El Dorado County Oak Resources Management Plan
A heritage valley oak
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Field Note · June 11, 2026
Late Fall Early Winter El Dorado County Peach Leaf Curl Treatment
a peach tree suffering from Peach Leaf Curl
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Field Note · June 11, 2026
Top 3 Mushroom Species on Oak trees in Eldorado County
Armillaria fruiting from the base of an Oak
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Field Note · June 11, 2026
Invasive Ambrosia Beetles cultivate fungi and fear among arborists
Biodiversity meets biodiversity
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Field Note
Trees and Fungi
Hug your favorite holobiont
