Issue link: http://winesandvines.uberflip.com/i/101495
GRAPEGROWING L.G. S I ron H terling orse V ine y ards Planting crews begin to dig holes for Chardonnay and Pinot Noir at Iron Horse Vineyards in the Russian River Valley, where the varieties are popular. to propagate. Concern about phylloxera is having a chilling effect on further use of this rootstock. Large populations of phylloxera have been found feeding on small roots causing nodosities (distorted, lumpy looking roots.) Poor growth and lower than desired vigor has occurred in some vineyards. These infestations, combined with some irrigation management strategies such as regulated deficit irrigation, have had a very negative effect on some plantings using 101-14 rootstock. To date, no tuberosities have been found on major roots, so 101-14 certainly is not failing as a rootstock. When tuberosities are visible, it means there are lesions in the bark and cambium of the roots, and ultimately the vineyard will need to be replanted. Concerned growers have applied Movento and Admire to their vines to control insects with piercing/sucking mouthparts, including phylloxera. These growers have seen their vines��� vigor improve after one or two applications. Additional watering and fertilizer are also helpful for low-vigor vineyards planted on 101-14 rootstock. Given the problems that 101-14 rootstock has, growers may want to consider other choices with more vigor and resistance to phylloxera feeding. My personal philosophy is to design a vineyard for drought tolerance since water supplies are becoming more limited���both from a climate change and urban use and demand perspective. If you are not planting on deep fertile soils, you certainly should consider more vigorous stocks such as 3309 (be sure your budwood is absolutely free of viruses), 5BB (don���t use in areas with high water tables in the winter due to its susceptibility to Phytophthora), 110R and 1103P. I find it is usually easier to devigorate a vineyard by withholding irrigation, planting competitive cover crops or limiting fertilizer than it is to invigorate a vineyard planted on a low-vigor rootstock. Breeding programs for new rootstocks that are nematode-resistant are promis- Transporting the Wine Industry to a Greener Future Yandell Truckaway, Inc. Family Owned and Operated Since 1945 Dedicated to managing integrated transportation and storage for the wine industry. Yandell Truckaway, Inc.��� Specialized equipment to maintain the integrity of wine, refrigerated and insulated trailing equipment, CARB compliant carrier, and an EPA SmartWay Transport Partner. SC Warehouses, Inc.���Bonded and temperature controlled wine storage, supply chain solutions to maximize cost effectiveness, large scale production projects, repack, labeling, import and export wine consolidation services, quality control services, and reselection. ContaCt: Alicia Yandell & John Yandell Phone: 925.988.9800 Website: www.yandell-scw.com 146 W in es & V i ne s JANUARY 20 13 TRUCKAWAY, Inc.