The Northern Grapes Project Webinar Series
“Comparing and Contrasting Vertical Shoot Positioning and Top Wire Cordon Training Systems”
Tuesday, February 10th, 2015
12:00 Noon Eastern (11:00 am Central)
7:00 pm Eastern (6:00 pm Central)
Join Bob Utter of Flying Otter Vineyard and Winery, John Thull of the University of Minnesota, and Tim Martinson of Cornell University as they discuss the pros and cons of Vertical Shoot Positioning (VSP) and Top Wire Cordon (TWC) training systems. Bob will discuss TWC, including the advantages (including reduced labor, frost protection, and varmint predation), disadvantages, and how to convert from VSP to TWC. John will cover how the narrow canopies created on VSP trellises allow for great sunlight interception and lower disease pressure, and the control that VSP gives the grower in the way of canopy management and what mechanized practices can be implemented. Tim will talk about the training system trials in New York on Marquette and Frontenac, and the differences observed between them, including yield and fruit composition.
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Registration will close at 8 am (Eastern) on Friday, February 6th.
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All members of the Northern Grapes Webinar mailing list will receive an email the Monday before the webinar containing the web address (URL) for both webinar sessions as well as connection instructions.
Feel free to email Chrislyn Particka (firstname.lastname@example.org) with any questions, if you want to check your registration status, or if you’d like to be removed from the Northern Grapes Webinar mailing list.
Further Northern Grapes Project information is available on-line at
The Northern Grapes Project is funded by the USDA’s Specialty Crops Research Initiative Program of the National Institute for Food and Agriculture, Project #2011-51181-30850 and through the New York State Specialty Crops Block Program.