Grapevine Downy Powdery Mildew Program


Updated 5/1/17      

Program is subject to change


DAY 1 – Monday, July 17, 2017
Start Time Activity
8:00 AM Registration and Poster Set-up
8:30 AM Introduction to Day
8:45 AM Session 1 – Breeding and Host Resistance
Wiedemann-Merdinoglu, Sabine –  INRA-ResDur : a French grapevine breeding program for durable resistance to downy and powdery mildew
Chitarrini, Giulia – Metabolomic approach to understand resistance in grapevine against Plasmopara viticola
Group Discussion on Plant Breeding for Grape Downy and Powdery Mildew
10:15 AM BREAK + Posters
10:30 AM Session 2: Disease Management 1
Pellini, Melissa – Efficacy of reduced copper dosages against Plasmopara viticola in organic agriculture
Raynal, Marc – Study of the variability of a vineyard sensitivity to the main fungus diseases:  a priori zoning of Physiological Behavior Units (PBU)
Moyer, Michelle – Training strategies to improve grower understanding of fungicide program development
Group Discssion on General Disease Management
12:30 PM Lunch + Posters
1:30 PM Session 3 – Disease Management 2 – Decision Support Systems
Bleyer, Gottfried – Experiments to optimize an established plant protection strategy against grapevine based on the forecast model “VitiMeteo Plasmopara”
Magarey, Peter – GrowCare; an easy-access web-based tool to alert Australian grapegrowers to better manage downy and powdery mildew
Caffi, Tito – Sustainable management of vineyards: the experience of a large-scale application of a web-based Decision Support System
3:15 PM Session 3 – Disease Management 2 – Decision Support Systems, Con’t
Mahaffee, Walt – Assessing transportability of Decision Support Systems – ascospore release prediction
Dubuis, Pierre-Henri – Contribution of the Swiss Agrometeo platform to the reduction of pesticides use and risks
Group Discussion on Decision Support Systems
4:45 PM Introduction to Oregon and Washington Viticulture
  Overview of Oregon Viticulture (Patty Skinkis – OSU Viticulture Extension Specialist)
  Overview of Washington Viticulture (Michelle Moyer – WSU Viticulture Extension Specialist)
5:45 PM Opening Reception and Light Refreshments
Introduction to the PNW region by the Oregon Wine Board and Washington Wine Commission. Sample regional wines and enjoy local appetizers
Day 2 – Tuesday July 18, 2017
Start Time Activity
8:00 AM Session 5 – Fungicide Resistance
Hall, Barbara – Fungicide resistance in Australian viticulture
McKay, Suzanne – Incidence and severity of QoI and DMI fungicide resistance of Erysiphe necator in Australia
Neill, Tara – Assessing fungicide resistance risk.
Group Discussion on Fungicide Resistance
10:00 AM BREAK + Posters
10:15 AM Session 6- Epidemiology
Scott, Eileen – PMapp and supporting website: new tools to facilitate assessing powdery mildew on grape bunches
Dubuis, PierreHenri– Downy mildew development in field artificially infected grape bunches
Mahaffee, Walt – Biophysical modeling of Pathogen dispersion
Group Discussion on Epidemiology
12:15 PM Lunch + Posters
1:15 PM Session 7- Plant-Microbe Interactions and Population Genetics
Scott, Eileen – Quantitative PCR, fatty acid analysis and mid-infrared spectroscopy for assessment of powdery mildew on grape berries at harvest
Taylor, Andrew – Assessment of the genetic diversity of Western Australian Plasmopara viticola populations
Group Discussion on Plant-Microbe Interactions and Population Genetics
2:45 PM BREAK + Posters
3:00 PM Discussion on Workshop Future Locations
4:00 PM Poster Reception (Posters Listed Below)
  Hernandez, Maria M – Variability in the response to powdery mildew of minority grape varieties recovered in Rioja
  Pscheidt, Jay – Occurrence of Grape Powdery and Downy Mildew in Western Oregon
  Taylor, Andrew – Detection of Plasmopara viticola oospores in Western Australian vineyards
  Hong, Cheng-Fang – Epidemiology and population biology of grape downy mildew (Plasmopara viticola) in vineyards in Georgia, U.S.A.
  Neill, Tara -Tracking fungicide resistance in Erysiphe necator
  Hernandez, Maria M – Variability in the pathogenicity of Erysiphe necator populations in La Rioja
5:00 PM Rest + Refresh
6:00 PM Dinner at Avery Park – BBQ and Volleyball
Day 3 – Wednesday July 19, 2017
Start Time Activity
8:00 AM Load Bus for Vineyard Tours
8:30 AM Vineyard Tours
6:30 PM Dinner during Tour
9:30 PM Return to Hotel