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Mike Smith

Education
PhD:  Horticulture, Michigan State University, East Lansing, MI '77
MS:    Horticulture, Oklahoma State University, Stillwater, OK  '75
BS:     Horticulture, Oklahoma State University, Stillwater, OK  '73

Teaching Activities

  • HORT 3213 Fruit and Nut Production - Commercial production of fruit and nut crops with emphasis on pecan, peach and apple.
  • HORT 5233 Experimental Horticulture - Methods of conducting research for agricultural crops, field plot techniques, and data analysis using SAS.
  • HORT 5422 Flowering and Fruiting in Horticultural Crops - Environmental, chemical and cultural factors affecting flowering and fruiting of horticultural crops

Research Activities
My research program deals with pecan management. The major problem associated with pecans is irregular bearing. Pecans are a masting species, a trait that is horticulturally undesirable. My research addresses plant nutrition, fruit thinning, ground cover management, and other strategies to reduce irregular bearing, improve orchard management, or develop low input systems for pecan. The pecan research team, composed of horticulturists, plant pathologist, entomologist, soil scientist, postharvest physiologist, food scientist, meteorologist, and agriculture engineer, at OSU is very active with several joint projects addressing issues from pest and disease management to new uses for pecans are in progress. Below are selected publications from my research program. Check out our Pecan Management page.

Selected Publications:

Smith, M.W. and W.D. Goff. 2014. Pecan nut suture splits are positively related to kernel moisture concentration and solar radiant exposure. HortTechnology 24:238-240.

Smith, M.W. and B.S. Cheary. 2013. Response of pecan to annual soil band applications of phosphorus and potassium. HortScience 48:1411-1415.

Smith, M.W. and B.S. Cheary. 2013. Individual shoot defoliation minimally affects pecan return bloom. HortScience 48:314-317.

Smith, M.W., W.D. Goff, and M.L. Wells. 2013. Pecan orchard renewal: Influence of established trees and remaining stumps on transplant growth and crown gall infection. HortScience 48:720-723.

Smith, M.W., C.T. Rohla, and W.D. Goff. 2012. Pecan leaf elemental sufficiency ranges and fertilizer recommendations. HortTechnology 22:594-599.

Hardin, J.A., M.W. Smith, P.R. Weckler, and B.S. Cheary. 2012. In situ measurement of pecan leaf nitrogen concentration using a SPAD meter and Vis-NIR multispectral camera. HortScience 47:955-960.

Smith, M. W. 2012. Kernel necrosis of 'Pawnee' pecan: Expanded distribution and relation to yield, tree size, and canopy location. HortScience 47:465-467.

Smith, M. W. 2012. Fruit production characteristics of 'Pawnee' pecan. HortScience 47:489-496.

Wagle, P., M.W. Smith, B.W. Wood, and C.T. Rohla. 2011. Supplemental foliar nickel and copper applications do not reduce kernel necrosis in pecan trees receiving excess nitrogen. Commun. Soil Sci. Plant Anal. 42:2219-2228.

Smith, M.W. 2011. Pecan production increased by larger vegetation-free area surrounding the tree. Sci. Hort. 130:211-213.

Wagle, P., M.W. Smith, B.W. Wood, and C.T. Rohla. 2011. Response of young bearing pecan trees to spring foliar nickel applications. J. Plant Nutrition 34:1558-1566.

Smith, M.W., B.S. Cheary. 2010. Pecan Bud Damage Caused by Freezing Temperatures During Spring 2009 was Affected by Cultivar. J. Amer. Pomological Soc. 64(2): 92-100.

Smith, M.W. 2010. Relationship of Leaf Necrosis and Defoliation to Phosphorus and Potassium Concentrations in Selected Tissue and to Certain Fruit Quality Parameters of Pecan. Sci Hortic. 125:117-122. doi:10.1016/j.scienta.2010.03.002

Smith, M.W. and P.G. Mulder. 2009. Oviposition Characteristics of Pecan Weevil. Southwestern Ento. 34: 447-455.

Smith, M.W. 2009. Partitioning phosphorus and potassium in pecan trees during high- and low-crop years. J. Amer. Soc. Hort. Sci. 134:399-404.

Smith, M.W. and C.T. Rohla. 2009 Pecan orchard damage and recovery from ice storms. HortTechnology. 19:83-90.

Smith, M.W. 2008. Relationship of trunk size to selected canopy parameters for native pecan trees. HortScience 43: 784-786.

Smith, M.W., B.S. Cheary and B.L. Carroll. 2007. The occurrence of pecan kernel necrosis. HortScience 42:1351-1356.

Smith, M.W., B.W. Wood and W.R. Raun. 2007. Recovery and partitioning of nitrogen from early spring and midsummer applications to pecan trees. J. Amer. Soc. Hort. Sci. 132:758-763.

Smith, M.W., C.T. Rohla and N.O. Maness. 2007. Correlations of crop load and return bloom with root and shoot concentrations of potassium, nitrogen, and nonstructural carbohydrates in pecan. J. Amer. Soc. Hort. Sci. 132:44-51.

Rohla, C.T., M.W. Smith, N.O. Maness and W. Reid. 2007. A comparison of return bloom and non-structural carbohydrates, nitrogen and potassium concentrations in moderate and severe alternate-bearing pecan cultivars. J. Amer. Soc. Hort. Sci. 132:172-177.

Rohla, C.T., M.W. Smith and N.O. Maness. 2007. Influence of cluster thinning on return bloom, nut quality, and concentrations of potassium, nitrogen, and non-structural carbohydrates. J. Amer. Soc.Hort. Sci. 132:158-165.

Smith, M.W. and P.G. Mulder. 2007. Role of cover crops in the management of arthropod pests in orchards. p. 56-73. In. O. Koul and G. W. Cuperus (eds.) Ecologically Based Integrated Pest Management, CABI International, Cambridge, Mass.

Smith, M.W. and B.W. Wood. 2006. Pecan tree biomass estimates. HortScience 41:1286-1291.

Smith, M.W., B.S. Cheary, and B.L. Carroll. 2005. Temporal weed interference with young pecan trees. HortScience 40:1723-1725.

Rohla, C.T., M.W. Smith, and N.O. Maness. 2005. Effects of cluster size and shoot type on selected pecan characteristics of Pecan Nuts. HortScience 40:1300-1303.

Smith, M.W., B.S. Cheary, and B.L. Carroll. 2005. Size of vegetation free area affects non-bearing pecan tree growth. HortScience 40:1298-1299.

Smith, M. W., B. S. Cheary, and B. L. Carroll 2004. Response of pecan to nitrogen rate and nitrogen application time. HortScience 39(6):1412-1415.

Acuña-Maldonado, L. E., M. W. Smith, N. O. Maness, B. S. Cheary, B. L. Carroll, and G. V. Johnson. 2003. Influence of nitrogen application time on nitrogen absorption, partitioning, and yield of pecan. J. Amer. Soc. Hort. Sci. 128(2):155-162.

Smith, M. W. 2002. Damage by early autumn freeze varies with pecan cultivar. HortScience 37(2):398-401.

Smith, M. W., B. S. Cheary, and B. L. Carroll 2002. Fescue sod suppresses young pecan tree growth. HortScience 37(7):1045-1048.

Smith, M. W., B. S. Cheary and B. L. Carroll. 2001. Rootstock and scion affect cold injury of young pecan trees. J. Amer. Pomological Soc. 55:124-128.

Smith, M. W., M. E. Wolf, B. S. Cheary, and B. L. Carroll. 2001. Allelopathy of bermudagrass, tall fescue, redroot pigweed, and cutleaf evening primrose on pecan. HortScience 36(6):1047-1048.

Smith, M. W., B. S. Cheary, and B. S. Landgraf. 2001. Manganese deficiency in pecan. HortScience 36(6):1075-1076.

Smith, M. W., B. L. Carroll, and B. S. Cheary. 2000. Mulch improves pecan tree growth during orchard establishment. HortScience 35(2):192-195

Smith, M. W. 2000. Cultivar and mulch affect cold injury of young pecan trees. J. Amer. Pomological Soc. 54(1):29-33.

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