Skip to main content
ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Disease and Pest Management Research Unit » People & Locations » Walter Mahaffee (Walt)
Walter F Mahaffee (Walt)

Research Plant Pathologist

Projects
Strawberry Nursery Production in the U.S.: What are the High Risk Viruses Circulating in the System? (Arkansas)
Cooperative Agreement (A)
  Accession Number: 445106
Optimizing Certification and Quarantine Protocols for Fragaria and Rubus Nursery Production and Plant Material Movement (UC Davis).
Cooperative Agreement (A)
  Accession Number: 447204
Knowledge Based Tools for Exotic and Emerging Diseases of Small Fruit and Nursery Crops
In-House Appropriated (D)
  Accession Number: 442138
Developing a Spray-Induced Gene Silencing (SIGS) Method for the Control of Grape Powdery Mildew (Erysiphe necator)
Grant (G)
  Accession Number: 437078
Fungal Microbiome Associated with Grapevine Trunk Diseases in Oregon Vineyards
Grant (G)
  Accession Number: 439677
Evaluation of Novel Cold Hardy Grape Rootstocks for Use in the Pacific Northwest
Grant (G)
  Accession Number: 442748
Characterization and Epidemiology of Grapevine Trunk Diseases (GTD) in Idaho
Grant (G)
  Accession Number: 442941
Investigating Native Populations of Biocontrol Agents from PNW Vineyards towards Developing Region Specific Biocontrol for Grapevine Diseases
Grant (G)
  Accession Number: 444952
Biological Fungicides Tank Mixed with Sulfur for Management of Grape Powdery Mildew
Grant (G)
  Accession Number: 444960
Grapevine Trunk Diseases: Achieving Sustainable Management through Structural Biology of Scion-rootstock-pathogen Interactions
Grant (G)
  Accession Number: 447019
What is Old is New Again: Effects of UV-C Germicidal Light, and Sulfur, on Powdery Mildew Management
Grant (G)
  Accession Number: 447020
Far-UV (222 nm) Technology for Controlling Pre- and Post-harvest Fruit Decay and Reducing Food Safety Risks of Berries
Grant (G)
  Accession Number: 447023
Optimizing Certification and Quarantine Protocols for Fragaria and Rubus Nursery Production and Plant Material Movement
Interagency Reimbursable Agreement (I)
  Accession Number: 446212
NCPN Berries -Corvallis
Interagency Reimbursable Agreement (I)
  Accession Number: 446213
TomSPOT - an Integrated Toolbox for Managing Tomato Bacterial Diseases in North America
Reimbursable Cooperative Agreement (R)
  Accession Number: 442346
A Systems Approach for Managing Bacterial Blight of Carrot
Reimbursable Cooperative Agreement (R)
  Accession Number: 439438
Development of Hazelnuts for Resistance to Eastern Filbert Blight
Non-Assistance Cooperative Agreement (S)
  Accession Number: 437013
Whole Genome Sequencing for Epidemiology, Population Structure, and Fungicide Resistance of Botrytis spp. in the Pacific Northwest
Non-Assistance Cooperative Agreement (S)
  Accession Number: 445131
Model Based Evaluation of Grape Vineyard Exposure to Wildfire Smoke
Non-Assistance Cooperative Agreement (S)
  Accession Number: 445758
Breeding Hazelnuts for Resistance to Eastern Filbert Blight
Non-Assistance Cooperative Agreement (S)
  Accession Number: 446237
National Clean Plant Network
Non-Assistance Cooperative Agreement (S)
  Accession Number: 446343