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Ornamental Plant Pathology
Dr. Gary Chastagner Endowment Fund
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Sentinel Tree Planting Project
Sooty Bark Disease
Bulbs and Cut Flowers
Christmas Trees
Lavender
Sudden Oak Death
Overview
Sudden Oak Death Education
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Informing Management
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Resprout Biological Control
Host Identification
Conifer Susceptibility
PNW Broadleaf Hosts
Rhododendron Susceptibility
Informing Nursery Practices
Fungicide Evaluation
Disinfectant Efficacy
Nitrogen Fertility
Biology and Spread
Phenotypic Variation
Detection in Waterways
Population Genetics
Monitoring
Overview
Volunteer Stream Monitoring Program
2021 Project
Projects
Movement of invasive plant diseases
Population genetics of P. ramorum in WA
Phytophthora ramorum Symptom ID Guide
Phytophthora Links
Pacific Madrone Research
Overview
About Pacific Madrone
Arbutus ARME
Pacific Madrone Research Projects
Growing Pacific Madrone
Diseases and Pests
Arbutus Links
National Elm Trial
Overview
Pruning Elm Trees
Education Programs
Phytophthora and Sudden Oak Death
Phytophthora
Información en español
Information for Specific Audiences
Nursery Professionals
Public Gardens
Forest & Christmas Tree Managers
Native Plant Producers
Master Gardeners
Students & Learners
Symptom ID Guide
Overview
Rhododendron
Camellia
Viburnum
Forest Health Watch - Biosurveillance Training
Emerging Plant Health Issues
Sword Fern Dieback
Western Redcedar Dieback
Sooty Bark Disease
Citizen Science
Overview
Arbutus ARME
Forest Health Watch
Volunteer Stream Monitoring Program
Overview
2021 Project
Our Community
Support Our Program
Contact Us
Jobs and Internships
Forest Health Watch
WSU Forest Health Lab
Ornamental Plant Pathology
Dr. Gary Chastagner Endowment Fund
Research Programs
Sentinel Tree Planting Project
Sooty Bark Disease
Bulbs and Cut Flowers
Christmas Trees
Lavender
Sudden Oak Death
Overview
Sudden Oak Death Education
Research
Monitoring
Phytophthora ramorum Symptom ID Guide
Phytophthora Links
Pacific Madrone Research
Overview
About Pacific Madrone
Arbutus ARME
Pacific Madrone Research Projects
Growing Pacific Madrone
Diseases and Pests
Arbutus Links
National Elm Trial
Overview
Pruning Elm Trees
Education Programs
Phytophthora and Sudden Oak Death
Phytophthora
Información en español
Information for Specific Audiences
Symptom ID Guide
Forest Health Watch - Biosurveillance Training
Emerging Plant Health Issues
Sword Fern Dieback
Western Redcedar Dieback
Sooty Bark Disease
Citizen Science
Overview
Arbutus ARME
Forest Health Watch
Volunteer Stream Monitoring Program
Overview
2021 Project
Our Community
Support Our Program
Contact Us
Jobs and Internships
Forest Health Watch
WSU Forest Health Lab
PPO
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Christmas Trees
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031Fig2
031Fig2
Christmas tree stem canker