Berkeley's Polypore
MODERATEBondarzewia berkeleyi
Overview
Found growing at base of large maple tree, harvested specimen is 8 inches long, 5 inches wide and 3 inches tall but the stipe extended another 4 inches before being cut. Older and larger specimen was about a foot in diameter. Sulfur scent like chicken of the woods and non-staining white flesh.
- Type
- Fungus
- Severity
- MODERATE
- Source
- iNaturalist
Symptoms
Geographic Spread
Treatments
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 Berkeley's Polypore. 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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Frequently Asked Questions
What is Berkeley's Polypore?
Found growing at base of large maple tree, harvested specimen is 8 inches long, 5 inches wide and 3 inches tall but the stipe extended another 4 inches before being cut. Older and larger specimen was about a foot in diameter. Sulfur scent like chicken of the woods and non-staining white flesh.
What are the symptoms of Berkeley's Polypore?
Where is Berkeley's Polypore currently found?
Berkeley's Polypore is currently active in Michigan, New York, Pennsylvania, Ohio, Maryland, Connecticut, North Carolina, Massachusetts, New Jersey, Delaware, New Hampshire, Virginia, Kentucky, Georgia, Maine, Indiana, Alabama, Illinois, Tennessee. It has been reported in 19 total states across the United States.
How do I treat Berkeley's Polypore?
Treatment options for Berkeley's Polypore include: Fungicide Application, Sanitation and Pruning, Soil and Moisture Management. Treatment approaches may include chemical, biological, cultural, and mechanical methods depending on the severity and context.