Overview
Growing under oaks on Labor Day next to the north parking lot for Lake Temescal. 2 young specimens pictured plus an older mushroom that I suspect is also A. phalloides but I'm not 100% sure (I didn't pull the bottom cleanly enough to get the entire base). I threw them away immediately given the large number of kids and dogs nearby
- 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 Deathcap. 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 Deathcap?
Growing under oaks on Labor Day next to the north parking lot for Lake Temescal. 2 young specimens pictured plus an older mushroom that I suspect is also A. phalloides but I'm not 100% sure (I didn't pull the bottom cleanly enough to get the entire base). I threw them away immediately given the large number of kids and dogs nearby
What are the symptoms of Deathcap?
Where is Deathcap currently found?
Deathcap is currently active in California. It has been reported in 1 total state across the United States.
How do I treat Deathcap?
Treatment options for Deathcap 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.