Our Coastal Oaks Are Dying.

The Invisible Threat in Our Woodlands

Foresters and property owners frequently report discovering dark, bleeding sap on the bark of mature oaks only after the canopy begins to brown. This late-stage symptom highlights a severe systemic challenge. The water mold responsible for Sudden Oak Death spreads through wind-driven rain and thrives in damp coastal climates—often infecting surrounding bay laurel leaves long before jumping to terminal oak hosts.

Waiting for visible trunk cankers guarantees high mortality rates. The pathway forward requires identifying the pathogen in its primary foliar hosts before it reaches the oaks. We focus on mapping these early warning signs across diverse topographies.

Community Action Through SOD Blitzes

Coastal communities recognized the urgent need to map local infection risks but lacked the scientific infrastructure to process thousands of leaf samples. We bridged this gap by launching the annual SOD Blitz program. Volunteers attend localized training sessions to learn precise leaf-collection protocols and tree identification techniques.

Armed with collection packets and GPS mapping tools, these citizen scientists survey their own neighborhoods and local parks during the peak spring transmission season. Impact assessments reveal that this distributed sampling network generates the most comprehensive pathogen distribution maps available for the region. The resulting data directly informs state-level quarantine zones and local management priorities.

Core Research and Action Areas

Our initiatives span the entire lifecycle of disease management, from microscopic pathogen analysis to regional forest recovery.

Disease Ecology

Information on pathogen biology, transmission vectors, and ecological behavior.

Explore Ecology

SOD Blitz Surveys

Community science initiatives, volunteer monitoring campaigns, and annual survey results.

Join a Blitz

Management & Prevention

Actionable guidance for landowners on treating infected trees and sanitation practices.

View Guidelines

Woodland Conservation

Resources on oak tree care, forest health, and ecosystem recovery strategies.

Conservation Strategies

Intervention and Forest Recovery

Before targeted interventions became widely accessible, landowners watched helplessly as entire groves succumbed to the disease. We shifted the focus toward proactive defense. During our engagement with property owners, we emphasize the strategic application of phosphonate treatments and strict sanitation protocols for pruning equipment.

Beneficiary reporting confirms that trees treated prior to infection exhibit significantly higher survival rates. Removing infected bay laurels immediately adjacent to high-value oaks further reduces the localized spore load.

Methodology and Scientific Oversight

Our leadership team brings decades of combined expertise in disease ecology, community science mobilization, and woodland conservation. By coordinating an ongoing collaboration with state forestry departments since 2008, we ensure our public guidance aligns with the latest epidemiological data.

While our sampling protocols yield highly accurate regional maps, localized micro-climates can occasionally mask early-stage pathogen presence. We continuously refine our diagnostic criteria to account for these environmental variables, ensuring our community science network remains a proven asset in the fight against Sudden Oak Death.