UCCE Sonoma County
University of California
UCCE Sonoma County

Rhonda J Smith

Photo of Rhonda J Smith
Viticulture Farm Advisor
UC Cooperative Extension
133 Aviation Boulevard
Suite 109
Santa Rosa, CA 95403-2894
(707) 565-2621
rhsmith@ucanr.edu Create VCard

Education

M.S. Horticulture/Viticulture, UC Davis. 1983
B.S. Plant Science/Plant Pathology, UC Davis. 1977

Awards

  • Distinguished Service Award - Outstanding Teamwork
    Presented by UC ANR,  2016

Specialty

Viticulture, wine grapes, water management, pest management, vine nutrition

Areas of Expertise (click to see all ANR academics with this expertise)

Bibliography

Peer Reviewed

  • Ricketts, J.D.; Gomez, M.I., et al. (2016). "Mitigating the Economic Impact of Grapevine Red Blotch: Optimizing Disease Management Strategies in U.S. Vineyards." Am. J. Enol. Vitic http://dx.doi.org/10.5344/ajev.2016.16009
  • Smith, R.J.; Bettiga, L.J., et al. (2015). Diseases. UC IPM Pest Management Guidelines: Grape. University of California Division of Agriculture and Natural Resources. Publ. 3448.
  • Ricketts, K.D.; Gomez, M.I., et al. (2015). "Reducing the economic impact of grape leafroll disease in California: Identifying optimal disease management strategies." Am. J. Enol. Vitic 66(2): 138-147.
  • Smith, R.J.; Bettiga, L.J., et al. (2014). Diseases. UC IPM Pest Management Guidelines: Grape. University of California Division of Agriculture and Natural Resources. Publ. 3448.
  • Cooper, M.; Varela, L., et al. (2014). "Growers, scientists and regulators collaborate on European grapevine moth program." California Agriculture 68(4): 125-133.
  • Bettiga, L.J.; Smith, R.J., et al. (2013). Abiotic Disorders and Injuries of Grapevines. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 29-45.
  • Zalom, F.G.; Bettiga, L.J., et al. (2013). Branch and Twig Borer. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 307-310.
  • Varela, L. G.; Cooper, M.L., et al. (2013). "Can European grapevine moth, Lobesia botrana (Lepidoptera: Tortricidae) be eradicated from California?" Integrated Protection and Production in Viticulture 85: 95-102.
  • Prichard, T.L.; Verdegaal, P., et al. (2013). Controlling Offsite Movement of Agricultural Chemical Residues: Winegrapes. University of California Agriculture and Natural Resources Publication 8346.: pp 46.
  • Zalom, F.G.; Smith, R.J., et al. (2013). Cutworms. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 341-345.
  • Smith, R.J.; Hashim, J.M. (2013). Diagnosing Vineyard Problems. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 49-54.
  • Bettiga, L.J.; Smith, R.J. (2013). European Earwig. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 181-182.
  • Daane, K.M.; Rosenheim, J.A., et al. (2013). Grape Leafhopper. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 202-219.
  • Smith, R.J.; Weber, E.A., et al. (2013). North Coast Calendar of Events for Viticulture Management. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 16-17.
  • Urbez-Torres, J.R.; Peduto, F., et al. (2013). "Phomopsis dieback: a grapevine trunk disease caused by Phomopis viticola in California." Plant Dis 97: 1571-1579.
  • Purcell, A.H.; Kirkpatrick, B.C., et al. (2013). Pierce's Disease. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 75-82.
  • Daane, K.M.; Bentley, W.J., et al. (2013). Planococcus Mealybugs. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 247-260.
  • Varela, L.G.; Smith, R.J., et al. (2013). Sharpshooters. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 277-285.
  • Mussen, E.C.; Smith, R.J. (2013). Social Wasps and Honey Bees. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 332-334.
  • Phillips, P.A.; Smith, R.J., et al. (2013). Thrips. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 295-304.
  • Smith, R.J. (2013). Treehoppers. Grape Pest Management.L. Bettiga. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3343: 286-287.
  • Al Rwahnih, M.; Rowhani, A., et al. (2012). "Grapevine necrotic union, a newly recognized disease of unknown etiology in grapevines grafted on 110 Richter rootstock in California." Plant Pathology 94(1)
  • Varela, L.G.; Bentley, W.J.; Baldwin, R.A.; Shrestha, A.; Smith, R.J.; Vasquez, S.J. 2011. Vineyard Pest Identification and Monitoring Cards. University of California Division of Agriculture and Natural Resources, Publication 3532.

  • Urbez-Torres, J.R.; Battany, M., et al. (2010). "Botryosphaeriaceae species spore trapping studies in California Vineyards." Plant Dis 94: 717-724.
  • Smith, R.J. National Research Council reviews pest status of light brown apple moth. 2010. p 9. [Sidebar In Varela, L.G., J.T.S. Walker, P.L. Lo and D.J. Rogers. 2010. New Zealand lessons may aid efforts to control light brown apple moth in California. Calif Ag 64(1): 6-12.]

  • Krasnow, M.N.; Matthews, M.N., et al. (2010). "Distinctive symptoms differentiate four common types of berry shrivel disorder in grapes." Calif Agri 64(3): 155-158.
  • Rolshausen, P.E.; Urbez-Torres, J.R., et al. (2010). "Evaluation of pruning wound susceptibility and protection against fungi associated with grapevine trunk diseases in California." Am. J. Enol. Vitic 61(1): 113-119.
  • Krasnow, M.; Weis, N., et al. (2009). "Inception, Progression, and Compositional Consequences of a Berry Shrivel Disorder." Am. J. Enol. Vitic 60(1): 24-34.
  • Steinmaus, S.; Elmore, C.L., et al. (2008). "Mulched cover crops as an alternative to conventional weed management systems in vineyards." Weed Research 48: 278-281.
  • Smith, R.J.; Varela, L.G. (2008). "Pomace management reduces spread of vine mealybugs." p 172. (Sidebar) In: Dane, K.M.; Cooper, M.L.; Triapitsyn, S.V.; Walton, V.M.; Yokato, G.Y.; Haviland, D.R.; Bentley, W.J.; Godfrey, K.E.; Wunderlich, L.R. "Vineyard managers and researchers seek sustainable solutions for mealybugs, a changing pest complex." California Agriculture 62(4):167-176. 

  • Anderson, M.M.; Smith, R.J., et al. (2008). "Viticultural Evaluation of French and California Chardonnay Clones Grown for Production of Sparkling Wine." Am. J. Enol. Vitic 59(1): 73-77.
  • Anderson, M.M.; Smith, R.J., et al. (2008). "Viticultural Evaluation of French and California Pinot noir Clones Grown for Production of Sparkling Wine." Am. J. Enol. Vitic 59(2): 188-193.
  • Gubler, D.; Smith, R.J., et al. (2006). Diseases. UC IPM Pest Management Guidelines: Grape. Univerisity of California Division of Agriculture and Natural Resources. Publ. 3448
  • Bentley, W.J.; Varela, L.G., et al. (2006). Insects and Mites. UC IPM Pest Management Guidelines: Grape. University of California Division Agriculture Natural Resources. Publ. 3448
  • Meyers, J.M.; Miles, J.A., et al. (2006). "Smaller loads reduce risk of back injuries during wine grape harvest." California Agriculture 60(1): 25-31.
  • Mercado-Martin, G.; Wolpert, J.A., et al. (2006). "Viticultural evaluation of eleven clones and two field selections of Pinot noir grown for production of sparkling wine in Los Carneros, California." Am. J. Enol. Vitic 57(3): 371-376.
  • Bentley, W.J.; Zalom, F., et al. (2004). Insects and Mites. UC IPM Pest Management Guidelines: Grape. University of California Division of Agriculture and Natural Resources. Publ. 3448
  • Bentley, W.J.; Zalom, F., et al. (2003). Insects and Mites. UC IPM Pest Management Guidelines: Grape. University of California Division of Agriculture and Natural Resources. Publ. 3448
  • Bettiga, L.J.; Golino, D.A., et al. (2003). Wine Grape Varieties of California.L. Christensen, N. Dokoozlian, M. Walker and J. Wolpert. Oakland, University of California Division of Agriculture Natural Resources. Publ. 3419
  • Gubler, D.; Stapleton, J., et al. (2002). Diseases. UC IPM Pest Management Guidelines: Grape. University of California Division Agriculture Natural Resources. Publ. 3339
  • Bentley, W.J.; Zalom, F., et al. (2002). Insects and Mites. UC IPM Pest Management Guidelines: Grape. University of California Division Agriculture Natural Resources. Publ. 3339
  • Varela, L.G.; Smith, R.J., et al. (2001). Pierce's Disease. Oakland, Univ. Calif. Div. Agric. Nat. Res. Publ. 21600: 20.
  • Meyers, J.M.; Miles, J.A., et al. (2001). "Priority risk factors for back injury in agricultural field work: vineyard ergonomics." J. Agromedicine 8(1): 39-54.
  • Gubler, W.D.; Stapleton, J., et al. (2000). Pierce's disease. UC IPM Guidelines: Grape. Univ. Calif. Div. Agric. Nat. Res. Publ. 3339
  • Bentley, W.J.; Zalom, F., et al. (1999). Grape Leafhoppers. UC IPM Guidelines: Grape. Univ. Calif. Div. Agric. Nat. Res. Publ. 3339
  • Bentley, W.J.; Zalom, F., et al. (1999). Grape Phylloxera. UC IPM Guidelines: Grape. Oakland, University of California Division of Agriculture and Natural Resources. Publ. 3339
  • Elmore, C.; Donaldsen, D., et al. (1998). Weed Management. Cover Cropping in Vineyards: A Grower's Handbook.C. Ingels, R. Bugg, G. McGourty and L. Christensen. Oakland, University of California Division of Agriculture and Natural Resources. Publication 3338
  • Feil, H.; Westerdahl, B.B.; Smith, R. J.; Verdegaal, P. (1997). "Effect of seasonal and site factors on Xiphenema index populations in two California vineyards." J. Nematology 29(4): 491-500. 

  • Weber, E.A.; DeBenedictis, J., et al. (1996). "Enzone does little to improve health of phylloxera-infested vineyards." California Agriculture 50(4): 19-23.
  • Smith, R. (1992). Three-cornered alfalfa hopper. Oakland, Univ. Calif. Div. Agric. Nat. Res. Publ. 3343
  • Williams, L.E.; Smith, R.J. (1991). "The effect of rootstock on the partitioning of dry weight, nitrogen, and potassium, and root distribution of Cabernet Sauvignon grapevines." Am. J. Enol. Vitic 42(2): 113-117.
  • Christensen, L.P.; Smith, R.J. (1989). "Effects of persistent woody laterals on bud performance of Thompson Seedless fruiting canes." Am. J. Enol. Vitic 40(1): 27-30.
  • Williams, L.E.; Biscay, P.J., et al. (1988). "The effect of Paclobutrazol injected into the soil on vegetative growth and yield of Vitis vinifera L., cv.Thompson Seedless." Journal of Hort. Sci 64(5)
  • Williams, L.E.; Biscay, P.J., et al. (1987). "Effect of interior canopy defoliation on berry composition and potassium distribution in Thompson Seedless grapevines." Am. J. Enol. Vitic 38(4): 287-292.

California Agriculture Article Contributions

ANR Workgroup Associations

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University of California Cooperative Extension, Sonoma County
133 Aviation Blvd Suite 109, Santa Rosa, CA 95403  Phone: 707.565.2621  Fax: 707.565.2623
Office Hours:  M-F, 8am-Noon & 1pm-4pm

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