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Mae Culumber

Nut Crops Farm Advisor
Cooperative Extension Fresno County
550 E. Shaw Avenue, Suite 210-B
(559) 241-7515
Fresno, CA 93710
cmculumber@ucanr.edu Create VCard

Also in:
Kings County


Ph.D. Soil science and agroecology, Utah State University. 2016
M.S. Plant science, molecular ecology, Utah State University. 2007
B.S. Biology, University of Wisconsin - Stevens Point. 2002

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


Peer Reviewed

  • Nouri, M. T., D.P. Lawrence, L.A. Holland, D.A. Doll, C.E. Kallsen, C.M. Culumber, and F.P. Trouillas 2019. Identification and pathogenicity of fungal species associated with canker diseases of pistachio in California. Plant Disease. https://doi.org/10.1094/PDIS-10-18-1717-RE

  • Culumber C.M., J.R. Reeve, B.L. Black, C.V. Ransom, and D.G. Alston. 2019. Organic Orchard Floor Management Impact on Soil Quality Indicators: Nutrient Fluxes, Microbial Biomass and Activity. Nutrient Cycling in Agroecosystems. 115(1), 101-115. https://doi.org/10.1007/s10705-019-10007-2.

  • Thomsen, E.O., Reeve, J.R., Culumber, C.M., Alston, D.G., Newhall, R., and G. Cardon. 2019 Simple Soil Tests for On-Site Evaluation of Soil Health in Orchards. Sustainability 11, 6009.

  • Yufang, J., H. Ruyan, G. Marino, M.Whiting, E. Kent, B. Sanden, M. Culumber, L. Ferguson, C. Little, S. Grattan, K.T. Paw U, L. Lagos, R.Snyder, D. Zaccaria. 2018. Spatially variable evapotranspiration over salt affected pistachio orchards analysed with satellite remote sending estimates. Agricultural and Forest Meteorology 262, 178-191.

  • Browne B., N. Ott, A. Poret-Peterson, B. Lampinen, S. Metcalf, M. Yaghmour, B. Holtz, M. Culumber, and G. Brar. 2018. Anaerobic soil disinfestation as an alternative to soil fumigation for management of Prunus replant disease: effects on tree growth and yield. Acta Horticulturae 1219, 287-294.

  • Nouri, M.T., G. Zhuang, C. M. Culumber, and F. P. Trouillas. 2018. First report of Macrophomina phaseolina causing trunk and cordon canker disease of Grapevine in the United States. Plant Disease. 3: 579.

  • Doll, D. J. Coelho, M. Zwieniecki, L. Zhang, L. Ferguson, M. Culumber. 2018. The evaluation of winter kaolin clay and dormant oil applications on chill accumulation and yield in the California pistachio ( Pistacia vera ) cultivars ‘Kerman’ and ‘Peters’. Acta Horticulturae. 111-118. 

  • Holtz, B., Browne, G.T., Doll, D., Culumber, M., Yaghmour, M.A., Jahanzad, E., Lampinen, B. and Gaudin, A. (2018). Whole almond orchard recycling and the effect on second generation tree growth, yield, light interception, and soil fertility. Acta Hortic. 1219, 265-272
    DOI: 10.17660/ActaHortic.2018.1219.41
  • Tebeau, A.S., D.G. Alston, C.V. Ransom, B.L. Black, J.R. Reeve, and C.M. Culumber. 2017. Effects of Floor Vegetation and Fertility Management on Weed Biomass and Diversity in Peach Orchards. Weed Technology, 31: 404-415

  • Reeve, J.R. C.M. Culumber, B.L. Black, A.S. Tebeau, C.V. Ransom, D.G. Alston, M.A. Rowley, and T. Linstrom. 2017. Establishing peach trees for organic production in Utah and the Intermountain West. Scientia Horticulturae 214, 242–251

  • Culumber, C.M., S.R. Larson, T.A. Jones, and K.B. Jensen. 2013. Wide-scale Population Sampling Identifies Three Phylogenetic Races of Leymus cinereus and Low-level Genetic Admixture with Leymus triticoides. Crop Science. 53: 996-1007.

  • Culumber C.M., S.R. Larson, K.B. Jensen, and T.A. Jones. 2011. Genetic Structure of Eurasian and North American Leymus (Triticeae) Wildryes Assessed by Chloroplast DNA Sequences and AFLP Profiles. Plant Systematics and Evolution. 294: 207-225.

  • Larson S.R., C.M. Culumber, R.N. Schweigert, and J.R. Chatterton 2010. Species Delimitation Tests of Endemic Lepidium papilliferum and Identification of Other Possible Evolutionarily Significant Units in the Lepidium montanum Complex (Brassicaceae) of Western North America. Conservation Genetics 11: 57-76

Non-Peer Reviewed

  • Culumber, C.M., S. Gao, A. Poret-Peterson, B. Holtz, G. Browne, A. Gaudin, E. Jahanzad, and E. Marvinney. 2020. “Influence of Whole Orchard Recycling on GHG Emissions and Soil Health in a New Almond Orchard”. American Society for Horticultural Science Virtual Conference, August 10-13, online. 2020 ASHS Annual Conference (confex.com)

  • Fichtner, E., Lampinen B., Culumber, M. (2020) Almond bloom intensity may be affected by prior year’s irrigation practices and diseases. West Coast Nut. April p. 24-28

  • Culumber, M. (2020) Choosing Amendments for Effective Salinity Management. West Coast Nut August p. 12-18

  • Baldwin R., Battany M., Beede B., Brar G., Culumber M., Ferguson L., Fichtner E., Gordon P., hanson B., Haviland D., Hembree K., Kallsen C., Marino G., Sanden B., Michailides T., Trouillas F., Zaccaria D., Harris L., Stewart D., Sumner D. 2020. Sample Costs to Establish and Produce Pistachios Low-Volume Irrigation San Joaquin Valley South. UCCE, AIC, UC Davis-ARE

  • Baldwin, R., Battany, M., Beede, R., Brar, G. Culumber, M., Ferguson, L., Fichtner, E., Gordon, P., Hanson, B., Haviland, D., Hembree, K., Kallsen, C. Marino, G., Sanden, B., Michailides, T.,; Trouillas, F., Zaccaria, D., Harris, L., Stewart, D. 2020. Sample Costs to Establish and Produce Pistachios: Low-volume Irrigation San Joaquin Valley South. Agricultural Issues Center UC Davis Department of Agricultural and Resource Economics. p 1-34.  

  • Gordon, P., and Culumber, M. (2020) The Effect of Soil Compaction on Tree Health. UCCE San Joaquin Valley Trees and Vines. 

  • Holtz, B., Culumber, M., Zuber, C., Browne G., Yaghmour M., Gao, S., Poret-Peterson, A. Gordon, P. (2020) Whole Orchard Recycling in Almond: Early Nitrogen Fertilization is Important in First-Year, Second Generation Trees. West Coast Nut November p. 20-26

  • Holtz, B. and M. Culumber. 2019. "2019 Nitrogen Considerations". West Coast Nut, February, 2019, 14-18.

  • Whaley, A., J. Reeve, B. Black, D. Alston, M. Culumber, L. Coyle 2019. Establishing Organic Peaches in the Intermountain West. Eorganic https://eorganic.org/node/33459

  • Haviland, D., Yaghmour M., Fichtner E., Sanden B., Culumber M., Viveros M., Steward D., Sumner D. 2019 Sample Costs to Establish and Orchard and Produce Almonds. University of California - San Joaquin Valley South. UCCE, UC-AIC, UC DAVIS-ARE

  • Fichtner, E.J., B. Lampinen, M. Culumber. 2018. Distribution of Chlorosis in Almond Orchards. West Coast Nut, September ed.

  • Culumber, Mae (2018). Fall and Winter Irrigation Management for Nut Crops. West Coast Nut. 10-14. November.
  • Thomsen, E.O., C.M Culumber, J.R. Reeve, G. Cardon, D. Alston, B.L. Black and C.V. Ransom. Strategies for managing soil fertility and health in organic orchards – A fact sheet. Extension, Utah State University. Horticulture/Orchards/2018-01.

  • Culumber, Mae (2017). Preventing orchard establishment and management pitfalls with online tools. 

  • Culumber, C.M. (2016). Soil nutrient cycling and water use in response to orchard floor management in stone-fruit orchards in the Intermountain West. Logan, UT, Utah State University Digital Commons. 5030, 233.

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