University of Nebraska
Viticulture Program
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FIELD DAY OPPORTUNITIES – 2008 Plan to attend one or more of the following Field Days. They are an opportunity to learn, to network with fellow growers, to see how others have approached (and hopefully solved) vineyard problems and challenges. We learn from each other ! June 28, 2008. Western Nebraska Vineyard Management Field Day. 17 Ranch Vineyard, Lewellen, Nebraska. Registration 8:30 a.m. Program begins in the vineyard at 9:00 a.m. with a focus on canopy management as affected by pruning and trellis systems. Observe 17 Ranch’s furrow irrigated Edelweiss, Marechal Foch, Traminette, St. Vincent and more. Lunch will be provided at the 17 Ranch Winery in downtown Lewellen, followed by a tour of the winery and discussion of challenges for new wineries, along with explanation of a new marketing approach in collaboration with Prairie Vines and Table Mountain wineries. Pre-registration is encouraged to help with plans for lunch. Send check for $20 to University of Nebraska Viticulture Program, 377 Plant Science Bldg., University of Nebraska, Lincoln, NE 68583-0724. or call or e-mail Donna Michel (402-472-8747, dmichel@unl.edu) to reserve your spot and pay upon arrival. Directions to 17 Ranch: follow US Route 26 west from Ogallala through Lewellen, turn north about a mile west of Lewellan – watch for a sign and balloons! From the west, travel U.S. Route 26 east from Oshkosh (about 10 miles) and watch for sign and balloons. – if you get into Lewellen, you’ve gone too far. July 28, 2008. Multi-State Field Day – Lexington, Missouri. This will be the fifth in this series of Multi-State Field Days, hosted this year by the University of Missouri’s Institute for Continental Climate Viticulture and Enology. Although a long distance to travel for growers from western Kansas, Nebraska and South Dakota (and from northern Iowa), this Field Day promises to be well worth the trip. An outstanding program has been developed that will showcase an excellent newly developed vineyard, Farmeier Brothers and a more established vineyard and winery, Baltimore Bend Vineyard and Winery. Tentative Program · 8:00 a.m. Registration · 9:00 – Cultivars – An overview of Lisa Smiley’s M.S. work at Iowa State University – Dr. Paul Domoto, Iowa State University. · 10:00 To Tube or Not to Tube? A review of tube types, their characteristics and value when establishing a vineyard. Dr. Keith Striegler, University of Missouri · 11:00 – Trellis Construction – “Bull-Strong” End Assemblies. Eli Bergmeier, University of Missouri · Noon – lunch. Discussions by Vendor and Exhibitor Representatives. · 1:00p Travel to Baltimore Bend Vineyard, Waverly, MO. · 1:15p – Canopy Management – Crop Load Estimation and Control. Andy Allen, University of Missouri. · 2:00p – Trellis Systems – What’s Right for You and Your Cultivars? Dr. Paul Read, University of Nebraska · 2:45p – Weed Management – Dr. Reid Smeda, University of Missouri · 3:30p – Adjourn to Baltimore Bend Winery Tasting Room. Sample Award Winning Wines. Cultivars being grown at Baltimore Bend include Vignoles, Chardonel, Cabernet Franc, Norton and Chambourcin. More details will be available on the University of Nebraska Viticulture Program web-site: http://agronomy.unl.edu/viticulture Including directions to the vineyard and a list of area motels. August 16, 2008. South-Central Nebraska Field Day, Superior Estates Winery. More details will be forthcoming.
Another alert to our friends: I am experiencing significant damage in the vineyard this spring from Grape Cane Borer. Thought you might like to know we have them in the north central part of the state as well. Have lost many cordons and in some cases entire trunks of 4-5 year old vines. I noticed last June shoots on some cordons all wilting with the eventual death of the cordon, apparently it was the borer at work. I have not been as careful as I should have been to remove all dead wood from the vineyard and burn. I will be from now on. Another lesson learned, the hard way! George Johnson CONCERNED ABOUT FOLIAR PHYLLOXERA? Although the root gall form of phylloxera is only a problem on classic winegrapes such as Chardonnay, Riesling, Merlot, Lemberger and other Vitis vinifera, some concern has been expressed about damage caused by the foliar form. (Note that all V. vinifera should be grafted onto phylloxera-resistant rootstocks.) The Midwest Commercial Small Fruit and Grape Spray Guide provides advice on treating the foliar form of phylloxera (once named Phylloxera vastatrix, now re-named Dactylasphaera vitifoliae). Chemicals recommended include (use only one) Endosulfan 50WP at 2 lb/acre or Endosulfan 3EC at 1.33 qt/ A. or, Danitol 2.4EC at 10.7 fl oz/A or Assail 30SG at 2.5 oz/A or Admire Pro at 7-14 fl oz/A. Timing is important! Application of insecticide should take place at bloom and again 10 to 14 days after bloom. Note that Endosulfan can cause severe phytotoxicity to cultivars such as Chambourcin, Concord, Baco Noir, Cynthiana/Norton, Chancellor and other cultivars (refer to product label for further notations of potential problem cultivars, also note that EC formulations are more likely to cause damage than WP formulations). Depending upon the severity of the previous year's infestations, one should carefully evaluate the economics of treatment, i.e., will the benefit of control justify the cost of the spray? Aesthetic considerations may warrant treatment even when there may not be a direct economic benefit. Moderate infestation of especially susceptible cultivars such as Frontenac may not warrant spraying, since Frontenac may be extremely vigorous on more fertile soils and a mild infestation of phylloxera may tend to reduce rampant vegetative growth. Some Nebraska and Midwest grape growers have reported that Danitol has provided desirable control of foliar phylloxera. As with all pesticides, always carefully read the label and follow all label restrictions and cautions. Remember, the label is a legal document and should be adhered to exactly. For further assistance with concerns about phylloxera, contact your Extension Educator or the University of Nebraska Viticulture Program staff (pread@unl.edu, 402-472-5136 or sgamet@unl.edu).
Summer VineLines - June/July 2008
Spring VineLines - April/May 2008
Contact Information
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The InThe Institute of Agriculture and Natural Resources, University of Nebraska-Lincoln. It is the policy of the University of Nebraska-Lincoln not to discriminate on the basis of gender, age, disability, race, color, religion and marital status, veterans status, national or ethnic origin or sexual orientation.l Resources, University of Nebraska-Lincoln. It is the policy of the University of Nebraska-Lincoln not to discriminate on the basis of gender, age, disability, race, color, religion and marital status, veterans status, national or ethnic origin or sexual orientation.
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