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Barrow's Bolete

MODERATE

Boletus barrowsii

Overview

Young specimen found right next to older/larger specimen with very pale to white cap. With spruce, Douglas fir, and pine.

Type
Fungus
Severity
MODERATE
Source
iNaturalist

Symptoms

Geographic Spread

Treatments

Fungicide Application

Chemical TreatmentEffectiveness: HIGH

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

Cultural PracticeEffectiveness: MODERATE

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

Cultural PracticeEffectiveness: MODERATE

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 Barrow's Bolete. Always read and follow label directions, and confirm a diagnosis before treating.

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Frequently Asked Questions

What is Barrow's Bolete?

Young specimen found right next to older/larger specimen with very pale to white cap. With spruce, Douglas fir, and pine.

What are the symptoms of Barrow's Bolete?

Where is Barrow's Bolete currently found?

Barrow's Bolete is currently active in Washington, Idaho, Colorado. It has been reported in 3 total states across the United States.

How do I treat Barrow's Bolete?

Treatment options for Barrow's Bolete 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.

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