Ellie Marie Andrews

Specialty Crops Advisor, Sonoma, Marin, and Napa Counties
UC Cooperative Extension
133 Aviation Boulevard
Suite 109
Santa Rosa, CA 95403-2894
(707) 565-5031
eandrews@ucanr.edu Create VCard

Also in:
Marin County
Napa County


PhD Horticulture & Agronomy, University of California Davis. 2022
Masters Plant Health Management, The Ohio State University. 2019
Bachelor Field Ecology - Plant Biology Emphasis, Ohio University. 2016


Agroecology, Agronomy, Soil-Plant Water Dynamics, Nutrient Management, Plant Physiology, Soil Health

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


Peer Reviewed

  • Andrews, E.M; Tabassum, M.; Galatis, E.G.; Yao, E.H.; Gaudin, A.C.M.; Lazcano, C.; Brown, P.H.; Khalsa, S.D.S. (2024). Almond hull and shell organic matter amendments increase microbial biomass and multifunctionality in orchard soil and the undisturbed organic layer. Applied Soil Ecology Journal. 197:105321.
  • Hartman, Leah Wolff; Andrews, Ellie M.; Galatis, Erini G.; Gaudin, Amelie C.M.; Brown, Patrick H.; Khalsa, Sat Darshan S. (2024). Evaluation of almond hull and shell amendments across organic matter management of orchard soils. Soil Systems Journal.
  • Andrews, E.M.; Fichtner, E.J. (2024). Pre-bloom foliar boron application on olive may improve yield. UC ANR Nut, Olive and Prune Programmatic News. January 26. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=58830
  • Elfar, Karina; Carachure, Carlos; Bustamante, Marcelo I; Andrews, Ellie; Eskalen, Akif (2023). First report of Diplodia bulgarica causing black canker on apple in California. Plant Disease. 08 November.
  • Andrews, Ellie M; Rivers, Daniel J; Gaudin, Amélie CM; Geisseler, Daniel; Brown, Patrick H; Khalsa, Sat Darshan S (2023). In a nutshell: almond hull and shell organic matter amendments increase soil and tree potassium status. Plant and Soil. Springer Link. 1-24. 07 November.
  • Smith, E. E.; Brown, P.H.; Andrews, E.M; Shackel, K.A.; Holtz, B.A.; Rivers, D.J; Haviland, D.R.; Khalsa, S.D.S. (2022). Early almond harvest as a strategy for sustainable irrigation, pest and disease management. Scientia Horticulturae. 293:110651.
  • Andrews, E.M.; Kassama, S.; Smith, E.E.; Brown, P.H.; Khalsa, S.D.S. (2021). A review of potassium-rich crop residues used as organic matter amendments in tree crop agroecosystems. Agriculture Special Issue: Organic Management and Productivity of Tree Crops. 11:580.

Non-Peer Reviewed

  • Andrews, Ellie (2023). Gopher Integrated Pest Management. Sonoma-Marin Farm News. Farm Bureau. 5. November.
  • Kisekka, Isaya; Peddinti, Srinivasa Rao; Vanella, Daniela; Andrews, Ellie; Brown, Patrick H 4 (2023). Organic Soil Amendment Effects on Soil Hydrology in an Almond Orchard Evaluated Using Time-Lapse Electrical Resistivity Tomography. SSRN.
  • Andrews, E.M.; Kassama, S. (2022). Applying almond hulls & shells as potassium-rich amendments. Sacramento Valley Orchard Source. University of California Agriculture and Natural Resources. June 13, 2022.

ANR Workgroup Associations

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