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WineEast Grapegrowing Pinot Gris collapsed mid-summer 2009 due to winter injury. Some vines experienced partial vine collapse in conclusion, the various pruning strategies did not physiologi- cally affect the recovery of Pinot Gris following approximately 90% bud injury. Our findings concur with previous reports from washington state that show no effect of pruning on vine survival in cold-injured Merlot vines. Practically, though, when vines sustain extensive primary bud injury, hedge pruning is advantageous over non-pruning or standard spur pruning because a moderate crop can be harvested in the same year following winter injury that ensures the maintenance of vine balance and rapid retraining and reestablishment of renewal spurs during year two. the practice of hedge pruning to five-node When You Require A Consistent Supply GRAPE SOURCING: WINERY SUPPLY: TRANSPORTATION: By variety, appellation or specification All equipment and supplies for all phases of winemaking Logistical network operating daily from coast to coast American Made Your Source For Quality Products including: fresh grapes, juice and bulk wine 101 Reserve Road * Hartford, CT 06114 * 877-812-1137 * Sales@JuiceGrape.com 64 Wines & Vines APRiL 2012 For free brochure contact: Swihart Sales Co. 7240 County Road AA, Quinter, KS 67752 Low Maintenance High Performance Excellent for spraying: VINEYARDS, vegetables, orchards, nurseries, Christmas trees, mosquitoes, cattle, chicken houses, etc. Motor Models available We offer a complete line of low volume mist blowers. and others total vine collapse. spurs is, therefore, recommended on cultivars that sustain extensive winter bud injury. wE Dr. Imed E. Dami is associate professor of Viticulture and Extension Specialist in the Department of Horticulture and Crop Science, Ohio State University Agricultural Research and Development Center in Wooster, Ohio. References d ami, E.i.; Ennahli, S.; and zhang, y. 2012. "assessment of winter injury in Grape cultivars and Pruning Strategies following a freezing Stress Event." Am. J. Enol. Vitic. 63(1):106-111. d ami, i.E.; Ellis, M.a.; ferree, d.c.; bordelon, b.; brown, M.V.; williams, r.n.; and doohan, d. 2005. "Midwest Grape Production Guide." the Ohio State university Extension bulletin 919, 155 pp. d ami, i.E. "update on the recent freezing events in Ohio." Ohio Grape-wine Elec- tronic newsletter, pp 2-5. feb. 6, 2009. k eller, M.; and Mills, l.J. 2007. "Effect of pruning on recovery and productivity of cold-injured Merlot grapevines." Am. J. Enol. Vitic. 58:351-357. w olfe, w. 2001. "Vine and vineyard management following low temperature in- jury." in Proceedings for the american Society for Enology and Viticulture 50th anniversary annual Meeting. J.M. rantz (Ed.), pp. 101-110. Seattle, wash. z abadal, t.; dami, i.E.; Goffinet, M.; Martinson, t.; and chien, M. 2007. "winter injury to Grapevines and Methods of Protection." Michigan State university, East lansing, Mich. e m – Mist Sprayers – s References available in your area 785-754-3513 or 800-864-4595 www.swihart-sales.com S a p l C n o a y ( ( l e f t) r i g h t)