Coprinellus sp. 'radians-IN02' in Kentucky
MODERATEFungus
Coprinellus sp. 'radians-IN02' is currently active in Kentucky. Watch your susceptible trees closely and act early.
About Coprinellus sp. 'radians-IN02'
The orange layer was not just a thin coating on the bark — it had built up into a distinct three-dimensional mycelial felt/mat. From my description: • Thickness: roughly 2.5–5 mm (about 0.1–0.2 inches). • Texture: springy/spongy and felt-like (almost like a thin mat you could slightly lift in places), rather than slimy or crusty, but it was still quite moist. • Attachment: loosely adherent in spots but forming a coherent layer. • Color: vivid, consistent orange throughout.
Symptoms to watch for
Treatment options
Fungicide Application
Apply systemic or contact fungicide at the first sign of infection. Repeat applications may be needed during wet weather. Follow label rates and timing.
Sanitation and Pruning
Remove and destroy all infected leaves, branches, and fallen debris. Improve air circulation by thinning dense canopy growth. Sterilize pruning tools.
Soil and Moisture Management
Ensure proper drainage, avoid overwatering, and apply mulch to reduce soil splash. Many fungal pathogens thrive in persistently wet conditions.
Recommended Products & Tools
Helpful supplies for managing Coprinellus sp. 'radians-IN02'. Always read and follow label directions, and confirm a diagnosis before treating.
Broad-spectrum protectant for many fungal leaf and bark diseases.
Preventive spray for needle cast, leaf spots, and blights.
Sharp, clean cuts to remove affected wood — a tree-care essential.
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Browse all Kentucky arborists →Frequently asked questions
Is Coprinellus sp. 'radians-IN02' in Kentucky?
Coprinellus sp. 'radians-IN02' is currently active in Kentucky. Watch your susceptible trees closely and act early. It was first recorded here on June 27, 2026.
What does Coprinellus sp. 'radians-IN02' look like?
How do I treat Coprinellus sp. 'radians-IN02'?
Options include: Fungicide Application, Sanitation and Pruning, Soil and Moisture Management. Confirm the diagnosis before treating, and consider a certified arborist for high-value trees.