Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Franz J.A. Niederholzer Ph.D.

Photo of Franz J.A. Niederholzer Ph.D.
Farm Advisor   Orchard Systems
Cooperative Extension Colusa County
PO Box 180, 100 Sunrise Boulevard
Suite E
Colusa, CA 95932
(530) 458-0570
fjniederholzer@ucanr.edu Create VCard

Also in:
Sutter-Yuba Counties


Ph.D. Soil Science, UC Davis. 1997
M.S. Soil Science, UC Davis. 1990
B.A. History, Amherst College. 1982


Prunes, almonds, pears, apple, cherry, olive, plum, citrus, and pomegranate

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


Peer Reviewed

  • Siegel, J.P.; Strmiska, M.M.; Niederholzer, F.J.A.; Giles, D.K.; Walse, S.S. (2019). Evaluating insecticide coverage in almond and pistachio for control of navel orangeworm (Amyelois transitella) (Lepidoptera: Pyralidae). Pest Manag Sci. 75:5, 1435-1442.
  • Wunderlich, L.R.; Niederholzer, F.J.A.; Blecker, L.; Smith, R.J.; Strmiska, M; Symmes, E.; Bolton, S. (2019). Survey reveals training needs for airblast sprayer applicators, farm managers, owners and pest control advisors. Outlooks on Pest Management. 30:2, 53-60.
  • Luo, Y.; Lichtenburg, P.S.F.; Niederholzer, F.J.A.; Lightle, D.M.; Felts, D.G.; Michailides, T.J. (2019). Understanding the process of latent infection of canker-causing pathogens in stone fruit and nut crops in California. Plant Disease. 110:9, 2374-2384.
  • Niederholzer, F.J.A.; Lampinen, B.; Johnson, B.; and Cutter, S. (2018). Conditioning harvested almonds on the orchard floor to reduce drying time of wetted almonds. Acta Hort. 1219, 243-250.
  • Venkitasamya, C.; Brandl, M.; Niederholzer, F.J.A.; Zhanga, R.; McHugh, T.; and Pan, Z. (2018). Feasibility of using sequential infrared and hot air for almond drying and inactivation of Enterococcus faecium. LWT. 95, 123-128.
  • DeJong, T.M.; Castro, S.; Niederholzer, F. (2017). Challenges to prune production in increasingly variable Californian weather conditions. Acta Hort. 1175, 25-28.
  • Markle, J.C.; Niederholzer, F.J.A.; Zalom, F.G. (2016). "Evaluation of spray application methods for navel orangeworm control in almonds." Pesticide Management Science 72(12): 2339-2346.
  • Lampinen, B.; Upadhyaya, S.; Udompetaikul, V.; Browne, G.; Roach, J.; Metcalf, S.; Stewart, W.; Contador, L.; Negron, C.; Gómez, I.P.; Beede, B.; DeBuse, C.; Doll, D.; Duncan, R.; Edstrom, J.; Elkins, R.; Fichtner, E.; Grant, J.; Hasey, J.; Holtz, B.; Kelley, K.; Krueger, B.; Niederholzer, F.; Olson, J. (2015). "A second generation mobile platform for assessing midday canopy photosynthetically active radiation interception in orchard systems." Acta Hort 1058: 105-112.
  • O’Geen, T.; Saal, M.; Dahlke, H.; Doll, D.; Elkins, R.; Fulton, A.; Fogg, G.; Harter, T.; Hopkins, J.W.; Ingels, C.; Verdegaal, P.; Walkin, M. (2015). "Soil suitability index identifies potential areas for groundwater banking on agricultural lands." California Agriculture 69(2): 75-84.
  • Hamby, K.A.; Nicola, N.L.; Niederholzer, F.J.A.; Zalom, F.G. (2015). "Timing Spring Insecticide Applications to Target both Amyelois transitella (Lepidoptera: Pyralidae) and Anarsia lineatella (Lepidoptera: Gelechiidae) in Almond Orchards." Journal of Economic Entomology 108(2): 683-693.

California Agriculture Article Contributions

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