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Mr. C. Scott Stoddard

County Director and Farm Advisor  Vegetable Crops and Soils
Cooperative Extension Merced County
2145 Wardrobe Avenue
Merced, CA 95341-6445
(209) 385-7403
csstoddard@ucanr.edu Create VCard

Also in:
Madera County


Scott grew up in Cheyenne, Wyoming, on the outskirts of town, where he spent summers riding bikes and motorcycles, but not horses, on the hills and dirt roads around his house.  His mother was an avid gardener, but other than that he had little interest in farming or ranching.  This changed when he took his first soils class at the University of Wyoming as a basic science requirement.  This class sparked an interest in soil management and agriculture in general, and he went on to major in Soil Science at UW (BSc. 1992), then continue on at the graduate level in soil fertility at the University of Kentucky (MSc. 1995).  After graduating, Scott worked for a fertilizer company in Virginia for a short while before joining UC Cooperative Extension in Merced in 1998.  The first day on the job he spent happily setting up spray rig on a 1992 Case IH 265 row crop tractor preparing it for spray trials in cotton.  The first four years were spent working under farm advisor Bill Weir, helping on research projects in cotton, tomatoes, melons, and sweetpotatoes.  Scott is now the vegetable crops farm advisor for Merced and Madera counties, working mainly on tomatoes, sweetpotatoes and melons, with an emphasis on plant fertility, variety evaluation, and weed management.  Scott is a member of the National Sweetpotato Collaborators Group, American Society of Hort Science (ASHS), Pesticide Applicators Professional Association (PAPA), and the California Weed Science Society (CWSS).  He is a Qualified Applicator as well as a Certified Professional Agronomist (CPAg) and CCA.  While not formerly trained as a weed scientist, it was attending CWSS conferences that sparked an interest in weed management and making it a major part of his research and education program as a farm advisor.  Scott resides in Atwater, CA, with his wife Andrea and three sons.  In his free time, he hangs out with his boys at track meets, baseball games, and soccer matches.


M.Sc. Soil Science, University of Kentucky. 1995
B.S. Agriculture and Soil Science, University of Wyoming. 1992


  • Oscar Lorenz Award
    Presented by UC Cooperative Extension,  2020
  • Award of Excellence
    Presented by California Weed Science Society,  2018


Soil fertility and soil conservation, tomatoes, melons, sweetpotatoes, weed management

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


Peer Reviewed

  • Bean, T.; Stoddard, C.S., et al. (2023). Herbicide screening for weed control and crop safety in California melon production. Weed Technology. https://doi.org/10.1017/wet.2023.30
  • Parker, T.; Leach, K., et al. (2023). Opportunities to breed diverse sweetpotato varieties for California organic production. Agriculture. 13:2191. https://dpo.org/10/10.3390/agriculture13122191
  • Ploeg, A.T.; Stoddard, C.S., et al. (2023). Tomato Mi-gene Resistance-Breaking Populations of Meloidogyne Show Variable Reproduction on Susceptible and Resistant Crop Cultivars. Journal of Nematology. 55(e-2023-1), 1-12. https://doi.org/10.2478/jofnem-2023-0043
  • La Bonte, D.R.; Clark, C., et al. (2021). "Vermillion' Sweetpotato. HortScience. 56:8, 979-981.
  • Batuman, Ozgur; Turini, Thomas, et al. (2020). Development of an IPM strategy for thrips and tomato spotted wilt virus in processing tomatoes in the central valley of California. Pathogens. 9:636, 1-33.
  • Stoddard, C. Scott; and Turini, Tom A. (2019). Management of Fusarium oxysporum race 3 in processing tomatoes with chemical and biofungicides and cultivar resistance. Acta Horticulturae. https://doi.org/10.17660/ActaHortic.2019.1233.16. 105-112.
  • Milkereit, Janet; Stoddard, C. Scott, et al. (2019). The influence of leaf traits and deficit irrigation on insect communities in mature green tomato production. Agriculture and Forest Entomology. 1-10.
  • Grieneisen, M.L.; Aegerter, B.J., et al. (2018). Yield and fruit quality of grafted tomatoes, and their potential for soil fumigant use reduction. A meta-analysis. Agron. Sustain. Dev. Springer. 38:29. https://doi.org/10.1007/s13593-018-0507-5
  • La Bonte, D.L.; Clark, C.A., et al. (2015). "'Bellevue' Sweetpotato." HortScience 50(6): 930-931.
  • LaBonte, D.; Clark, C., et al. (2014). "'Burgundy' sweet potato." HortScience 49(5): 669-671.
  • Lanini, W.; Miyao, G., et al. (2014). Sweetpotato (Ipomea batatas). Principles of Weed Control.S. Fennimore and C. Bell. Salinas, California, California Weed Science Society.
  • Stoddard, C. (2014). Tomato (Solanum Lyopersicum). Principles of Weed Control.S. Fennimore and C. Bell. Salinas, California, California Weed Science Society.
  • Stoddard, C.; Davis, C., et al. (2013). Sweetpotato production in California. UC ANR. 7237. http://anrcatalog.ucanr.edu
  • Stoddard, C. (2013). Tomatoes. UC IPM Pest Management Guidelines. UC ANR. 3470. http://www.ipm.ucdavis.edu/PMG/selectnewpest.tomatoes.html
  • Stoddard, C. (2011). Cucurbits. UC IPM Pest Management Guidelines. UC ANR. 3445. http://www.ipm.ucdavis.edu/PMG/pmgauthors.html
  • Stoddard, C. (2011). Tomatoes. UC IPM Pest Management Guidelines. UC ANR. 3470. http://www.ipm.ucdavis.edu/PMG/selectnewpest.tomatoes.html
  • Smith, T.; Stoddard, C., et al. (2009). Sweetpotato Production in the United States. The Sweetpotato.G. Loebenstein and G. Thottappilly. Springer Science & Business Media B.V.: 287-323.
  • Hartz, T.; Cantwell, M., et al. (2008). Cantaloupe production in California. UC ANR. Publication 7218. http://anrcatalog.ucdavis.edu
  • LaBonte, D.; Villordon, A., et al. (2008). "Murasaki-29 Sweetpotato." HortScience 43(6): 1895-1896.
  • Hartz, T.; Miyao, G., et al. (2008). Processing tomato production in California. UC ANR. Publication 7228. http://anrcatalog.ucdavis.edu
  • Stoddard, C.; LeStrange, M., et al. (2007). Sample costs to produce fresh market tomatoes, San Joaquin Valley Furrow Irrigated. Davis, CA, UCCE.
  • Stoddard, C.; Klonsky, K., et al. (2006). Sample costs to produce sweetpotatoes. Davis, CA, UCCE.
  • Stoddard, C.; Grove, J., et al. (2005). "Fertilizer, tillage, and dairy manure contributions to nitrate and herbicide leaching." Journal of Environmental Quality 34: 1354-1362.
  • LeStrange, M.; Weir, B., et al. (2000). Sample costs to produce fresh market tomatoes in the San Joaquin Valley. Davis, CA, UCCE.
  • Stoddard, C.; Coyne, M., et al. (1998). "Fecal bacteria survival and infiltration through a shallow agricultural soil: timing and tillage effects." Journal of Environmental Quality 27: 1516-1523.

ANR Workgroup Associations

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