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Issue 29, May 2017

​​Appellation Cornell 29

News from Cornell's Viticulture and Enology Program
May 31, 2017


Research FocusWine Grapes for New York's North Country: The Willsboro Cold Climate Variety Trial
The introduction of cold-hardy grape cultivars in the mid 1990s made grape and wine production possible in cold-climate regions like northern New York. Anna Wallis and Tim Martinson discuss the results of a seven-year cold-hardy grape study on phenology, winter injury, yield, and fruit composition at a research vineyard near Lake Champlain.


Five Questions for Terry Bates
As director of the Cornell Lake Erie Research and Extension Laboratory (CLEREL), Terry Bates applies his research and extension experience to help growers improve production of juice and wine grapes in western New York.


Wayne Wilcox's Final Grape Disease Management Update
Since 1997, Wayne Wilcox, plant pathology professor at NYSAES, has provided annual summaries of grape pathogen biology, fungicide trials, resistance management, and sample spray programs to extension programs and growers throughout the East.  This final version (84 pp) is his last effort before he retires in December.  It encapsulates, in plain English, 30+ years of research by Wayne, his graduate students,and his colleagues on powdery mildew, downy mildew, black rot, botrytis, and phomopsis and other diseases. Thanks to Wayne for this major extension effort.


New Cider Course for VIEN Students  
New York's cider industry is growing quickly, and to meet these demands Cornell Viticulture and Enology students can now take classes on cider production to gain practical, real world experience from orchard to fermentation.

Grapes 101GRAPES 101

Three Steps to Manage Grape Berry Moth
Grape Berry Moth can be a serious pest in some vineyards. In this Wine & Grapes U. blog post originally published by Penn State, Andy Muza discusses how to better manage for this pest throughout the growing season.


Efficient VineyardThe Efficient Vineyard is a collaboration among researchers, extension officers, and grape growers using spatial sensing technology to measure commercial vineyards at a higher resolution. Led by Terry Bates from the Lake Erie Regional Grape Program (LERGP), tools developed from this project will better inform vineyard management to improve yield, fruit quality, and production economics. In this section, we will share the latest research and news from this project.  

  • Yield monitoring in bulk juice grapes (Blog - January 2017)
    Most grape producers measure vineyard production in tons per acre in each block they manage. Yet, yield can vary significantly within a vineyard block. To measure this variability, Terry Bates is currently testing electronic yield monitors on mechanical grape harvesters in western New York.

  • Determining when to collect NDVI measurements to predict vine size and yield (Current Research - March 2017)
    NDVI sensors estimate canopy growth by sensing the presence or absence of active leaves. In 2016, LERGP project members found that the best time of the season to collect NDVI information was at veraison, followed by  bloom and post-bloom. This in-season data can be useful for management applications such as crop estimation or fruit thinning.