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Tony Wolf

Tony Wolf
  • Fax: (540) 869-0862


  • Ph.D., Pomology and Viticulture, 1986, Cornell University
  • M.S., Horticulture, 1982, The Pennsylvania State University
  • B.S., Plant Sciences, 1980, West Virginia University


  • "Contribution to Virginia Viticulture,” by Virginia Vineyards Association, February 2008.
  • Virginia Tech Alumni Extension Excellence Award, March 2009.
  • Virginia Tech's College of Agriculture and Life Science's Land-grant Award, July 2011.
  • Virginia Agribusiness Council's "Land Grant University" award recipient, 2016.
  • Outstanding Achievement Award recipient, Eastern Section/American Society for Enology and Viticulture, 2017. 


My research interests are broad and reflect the multi-disciplinary challenges faced by the Virginia wine grape industry. Previous research focused on methods of grapevine canopy management that affected grape and wine quality, cold hardiness investigations, and inter-disciplinary collaboration with entomologists and plant pathologists to reduce pest problems.

Current research includes wine grape variety evaluations, collaborative studies of grape root borer effects on grapevines, regulation of vine vegetative growth to enhance grape and wine quality, and collaborative efforts to develop a new generation of GIS vineyard site evaluation maps for Virginia. Graduate students are an integral part of my research program.

My Extension responsibilities are to educate commercial grape growers and train Cooperative Extension agents in interdisciplinary measures that improve grape quality and vineyard productivity. I use workshops, short courses, field meetings, and a variety of written media to disseminate information. To the extent possible, I also address individual requests for information and assistance. I directly assist Virginia Cooperative Extension (VCE) faculty-agents with grape-related problems and provide in-service agent training. Some of this activity is of a regional nature with colleagues in Pennsylvania and Maryland. The publication of the Wine Grape Production Guide for Eastern North America in 2008 is a recent example of an Extension deliverable. Current Extension programs include:

  • Cooperation with local VCE agents with seasonal vineyard meetings.
  • Cooperation with the Virginia Vineyards Association on technical summer meeting and winter short course.
  • Development of a "Sustainable Vineyard Practices" workbook for Virginia grape producers.

Davis, R.E., E.L. Dally, Y. Zhao, and T.K. Wolf.  2018.  Genotyping Points to Divergent Evolution of 'Candidatus Phytoplasma asteris' Strains Causing North American Grapevine Yellows and Strains Causing Aster Yellows.  Plant Disease 102: (in press).

Hickey, C.C., M.T. Kwasniewski and T.K. Wolf.  2018.  Leaf removal effects on Cabernet franc and Petit Verdot.  II.  Grape carotenoids, phenolics, and wine sensory analysis.  Amer. J. Enol.  Vitic.  69: (in press).

Hickey, C.C. and T.K. Wolf.  2018.  Leaf removal effects on Cabernet franc and Petit Verdot. I.  Crop yield components and primary fruit composition.  Amer. J. Enol. Vitic. 69 (in press).

Gustavo, F.C., Hatch, T.A. and T.K. Wolf.  2016.  Assessment of the impact of viticulture extension programs in Virginia.  Journal of Extension, 54 (5).  11 pages.

Klodd, A., D. Eissenstat, T.K. Wolf, and M. Centinari.  2016.  Coping with cover crop competition in mature grapevines.  Plant and Soil 400: 391-402.

Hickey, C.C., T. Hatch,  J. Stallings, and T.K. Wolf.  2016.  Under-trellis cover crop and rootstock affect growth, yield components, and fruit compostion of Cabernet Sauvignon.  Amer. J. Enol. Vitic. 67:281-295.

Giese, Gill, T.K. Wolf, C Velasco-Cruz, and L. Roberts.  2016.  Cover crop and root pruning effects on the rooting pattern of SO4 rootstock grafted to Cabernet Sauvignon.  Amer. J. Enol. Vitic.  67:105-115. 

Davis, RE, EL Dally, Y Zhao, I-M Lee, W Wei, TK Wolf, L Beanland, DG LeDoux, DA Johnson, JA Fiola, H Walter-Peterson, I Dami and M Chien. 2015. Unraveling the etiology of North American Grapevine Yellows (NAGY): Novel NAGY phytoplasma sequevars related to ‘Candidatus Phytoplasma pruni’. Plant Dis. 99:1-11.

Giese, Gill,  T.K. Wolf, C. Velasco-Cruz, L. Roberts, and J. Heitman. 2015. Cover crop and root pruning impacts on vegetative growth, crop yield components, and grape composition of Cabernet Sauvignon. Amer. J. Enol. Vitic. 66:212-226.

Giese, Gill, C. Velasco-Cruz, L. Roberts, J. Heitman, and T.K. Wolf. 2014. Complete vineyard floor cover crops favorably limit grapevine vegetative growth. Scientia Horticulturae 170:256-266.

Hatch, Tremain A., Cain C. Hickey, and T.K. Wolf. 2011. Cover crop, rootstock, and root restriction regulate vegetative growth of Cabernet Sauvignon in a humid environment. Amer. J. Enol. Vitic. 62:208-311.

Zoecklein, B.W., T.K. Wolf, L. Pelanne, M.K. Miller, and S.S.Birkenmaier. 2008. Effect of vertical shoot-positioned, Smart-Dyson, and Geneva Double-Curtain training systems on Viognier grape and wine composition. Amer. J. Enol. Vitic. 59:11-21.