Hero Image

John N. Kabashima M.B.A., Ph.D.

Environmental Horticulture Advisor, Emeritus
Orange County - UC Cooperative Extension
7601 Irvine Blvd.
Irvine, CA 92618
jnkabashima@ucanr.edu Create VCard

Also in:
South Coast Research & Extension Center
Los Angeles County


Ph.D. Entomology, UC Riverside. 2005
M.B.A. MBA, Pepperdine University, Irvine. 1986
M.S. Pest Mgmt, UC Riverside. 1980
B.S. Agricultural Biology, California Polytechnic University at Pomona. 1979


  • Outstanding Volunteer Achievement Award
    Presented by Reduce the Risks from Invasive Species Coalition,  2019
  • Urban Tree Legacy Award
    Presented by California Urban Forest Council,  2018
  • Award of Arboricultural Research. Western Chapter, International Society of Arboriculture
    Presented by International Society of Arboriculture,  2016
  • Outstanding Contribution to Agriculture
    Presented by California Association of Pest Control Advisors,  2011
  • Team Award
    Presented by Entomological Society of America,  2010
  • Western Extension Director's Award for Excellence for the Farm Quality Planning Project
    Presented by Western Region Extension,  2008


Ornamental horticulture, nursery crops, pest management, exotic and invasive pests, water runoff, water quality

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


Peer Reviewed

  • Mayorquin, Joey S.; Carrillo, Joseph D., et al. (2018). Chemical Management of Invasive Shot Hole Borer and Fusarium dieback in California Sycamore (Platanus racemosa) in Southern California. Plant Disease Online. APS Publications. 102:7. May 15, 2018.
  • Choe, Dong-Hwan; Campbell, Kathleen, et al. (2018). Evaluation of a Hydrogel Matrix for Baiting Western Yellowjacket (Vespidae: Hymenopthera). Journal of Economic Entomology. 111:4, 1799-1805.
  • Eatough Jones, M.; Kabashima, J., et al. (2017). . Evaluations of insecticides and fungicides for reducing attack rates of a new invasive ambrosia beetle (Euwallacea sp., Coleoptera: Curculionidae: Scolytinae) in infested landscape trees in California. Journal of Economic Entomology. 110, 1611-1618.
  • Eskalen, Akif; Mayorquin, Joey S.: Carrillo, et al. (2017). Invasive Shot Hole Borers Threatening Trees in Southern California. Retail Nursery & Garden Center IPM News. Pests in the Urban Landscape. 6:3.
  • Vargas, Roger; Souder, Steve, et al. (2016). Captures of Wild Ceratitis capitata, Bactrocera dorsalis, and Bactrocera cucurbitae (Diptera: Tephritidae) in Traps with Improved Multilure TMR Dispensers Weathered in California. Journal of Economic Entomology. 109:2, 607-612.
  • Rust, Michael K.; Choe, Dong-Hwan, et al. (2016). Controlling yellow jackets with fipronil-based protein baits in urban recreational areas. International Journal of Pest Management. 63:3, 1-8.
  • Hoddle, Mark S.; Stoscic, Christina D., et al. (2016). The palm weevil Rhynchophorus vulneratus is eradicated from Laguna Beach. California Agriculture. 70:3, 1-7.
  • Carrillo, J.D.; Kabashima, J., et al. (2016). Water-based latex paint as a means to track ambrosia beetle activity on infested trees. Topics in Subtropics. 14:4, 8-10.

Non-Peer Reviewed

  • Bethke, J.A.; Shaw, D.A. (2010). Invasive Pest Case Studies in Urban Landscape and Ornamental Plant Production: GWSS, Diaprepes, and Myoporum Thrips. CAP{CA Advisor. 13:4, 36-41.

California Agriculture Article Contributions

ANR Workgroup Associations

Return to Contact Us