Giant Sawgill
MODERATENeolentinus ponderosus
Overview
Growing at the base of a dead tree- the tree is identified on inat as a foxtail pine. Inat tries to ID this as giant sawgill. Though it is not growing on a ponderosa. Can this species also grow on other dead pines? Note the bright yellow ridges on gills
- 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 Giant Sawgill. 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 Giant Sawgill?
Growing at the base of a dead tree- the tree is identified on inat as a foxtail pine. Inat tries to ID this as giant sawgill. Though it is not growing on a ponderosa. Can this species also grow on other dead pines? Note the bright yellow ridges on gills
What are the symptoms of Giant Sawgill?
Where is Giant Sawgill currently found?
Giant Sawgill is currently active in Georgia, California, Colorado, Alabama. It has been reported in 4 total states across the United States.
How do I treat Giant Sawgill?
Treatment options for Giant Sawgill 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.