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80 W i n e s & V i n e s J U LY 2 0 1 4 WineEast In either case, new trunks will need to be developed, and this will require retraining from shoots that originate from uninjured portions of the vine near the graft union (assuming there are live, latent buds in the graft region of the scion). With no appreciable winter injury during the past 10 or more years, many of us have ceased hilling and de-hilling of vines for cold protection. With very tender varieties, there's a chance that severely damaged vines may need to be replanted. Renewal trunk shoots that do develop from severely injured vines will likely be extremely vigorous because they are sup- ported by a large, intact root system. Permit these vines to develop as many shoots as is reasonable (five or six if pos- sible), and keep the shoots well exposed and supported upright on the old trunks and trellis system to minimize shading and permit effective disease management. The injury that I observed was not uniform across entire vineyard blocks, and you may find that unin- jured vines (or uninjured trunks on multiple-trunked vines) have more shoots than can be trel- lised. Be prepared to do some shoot (and crop) thinning where needed in June and July. Where injury is certain and Grapegrowing budwood e: sam@budwood.biz | c: 267.408.5769 | w: www.budwood.biz YOU make great wines WE design great labels Let's work together to refresh your labels and increase your botom line Contact us for a FREE CONSULTATION CREATIVE BRAND DESIGN SOLUTIONS REFRESH Excellent for spraying: VINEYARDS, vegetables, orchards, nurseries, Christmas trees, mosquitoes, cattle, chicken houses, etc. Low Maintenance High Performance Motor Models available S a l es C om pa n y – Mist Sprayers – References available in your area American Made We offer a complete line of low volume mist blowers. For free brochure contact: Swihart Sales Co. 7240 County Road AA, Quinter, KS 67752 785-754-3513 or 800-864-4595 www.swihart-sales.com EASTERN WINE LABS Serving the Analytical needs of East Coast Wineries WWW.EASTERNWINELABS.COM Ph 609-859-4302 Cell 609-668-2854 chemist@easternwinelabs.com AOAC Member EasternWineLab_Mar09.qxp 1/22/09 9:47 AM Page 1 Five steps for recovering from cold injury 1 Vines whose health was compromised going into the winter (and those in poorly drained soils) may have increased shoot or trunk injury. Severely damaged vines may need to be replaced. 2 For injured vines with live, latent buds in the graft region of the scion, bring up as many as five or six shoots as pos- sible renewal trunks. Shoot and crop thinning may be neces- sary in June and July. 3 Keep renewal trunk shoots well exposed and supported upright on the old trunks and trellis system to minimize shading and permit disease management. 4 Avoid nitrogen fertilizing and either allow weeds or plant grass to grow under the trellis to give competition and reduce shoot vigor. 5 Consider establishing multiple-trunks and possibly hilling- up for cold protection after harvest. T.W. WineEast Renewal trunk shoots that do develop from severely injured vines will likely be extremely vigorous because they are supported by a large, intact root system.