Igor Lacan
Interim County Director; Bay Area Environmental Horticulture and Urban Forestry Advisor
Ph.D. Urban Forestry, University of California, Berkeley. 2007
M.S. Aquatic Ecology, University of California, Berkeley. 2000
B.S. Applied Ecology, University of California, Berkeley. 1997
M.S. Aquatic Ecology, University of California, Berkeley. 2000
B.S. Applied Ecology, University of California, Berkeley. 1997
Urban Forestry
Peer reviewed
- Garbelotto, Matteo; Scali, Edoardo; Swain, Steven; Macon, Daniel; Lacan, Igor; Schmidt, Douglas; Popenuck, Tina; Martino, Ilaria; Guarnaccia, Vladimiro (2025). In California's Changing Climate, Latent Pathogens Drive Novel Woody Plant Diebacks on a Large Geographic Scale. Plant Pathology. 74:9, 2697-2714.
- Kumar, Nikhil; Pasternack, Gregory Brian; Jin, Yufang; Alexander, Serena; Wang, Zhihao; Rampini, Costanza; Storesund, Rune; Lim, Chris; Moreno, Stephanie; Lacan, Igor. (2025). Socio-Economic Risk of Rising Compound Precipitation-Wind Extremes in San Francisco Bay Area. International Journal of Climatology.
- Lacan, Igor; Dronova, Iryna; McBride, Joe. (2024). Social impact of destruction of urban forests in Ukraine and considerations for their future reconstruction. Urban Forestry & Urban Greening.
- Lacan, Igor; Swain, Steven V.; Perry, Edward J. (2022). Pest Notes: Mistletoes. UC ANR Publication 7437. Windbiel Rojas, Karey; Sutherland, Andrew M.; Messenger-Sikes, Belinda. UC ANR. 6. https://ipm.ucanr.edu/PMG/PESTNOTES/pn7437.html
- Downer, Arthur James; Lacan, Igor (2020). Armillaria Root Rot UC IPM Pest Note. UC IPM Pest Notes. Windbiel-Rojas, K; Sutherland, AM; Messenger-Sikes, B. UC ANR. 74171.
- Lacan, Igor; Moanga, Diana; McBride, Joe R.; Butsic, Van (2020). “Sealed in San José:” Paving of front yards diminishes urban forest resource and benefits in low-density residential neighborhoods. Urban Forestry & Urban Greening. Elsevier. 54, 126755. https://www.sciencedirect.com/science/article/abs/pii/S1618866719306429
- McBride, Joe; Lacan, Igor (2018). The impact of climate-change induced temperature increases on the suitability of street tree species in California (USA) cities. Urban Forestry & Urban Greening. 34, 348-356. https://www.sciencedirect.com/science/article/pii/S1618866718300013
- Lacan, Igor; Wilen, Cheryl A; Roncoroni, John A (2017). Using Herbicides Safely Around Trees. UC IPM Green Bulletin. Windbiel-Rojas, K. Davis, UC ANR. May 2017, 4-6.
- Lacan, Igor; Resh, Vincent (2016). A case study in integrated management: Sacramento–San
Joaquin Rivers and Delta of California, USA. Ecohydrology & Hydrobiology. 16, 215-228. - Sims, Laura; Lacan, Igor; Swain, Steven; Garbelotto, Matteo (2016). Phytophthora tentaculata, a new exotic and invasive disease. UC IPM Green Bulletin. Windbiel-Rojas, Karey. 6:3, 4-6. December.
- Lacan, Igor (2016). When Monitoring Is the Best Action - The Case of Two “Flux Diseases”. UC IPM Green Bulletin. Windbiel-Rojas, K. Davis, UC ANR. 6:2, 2-7. August.
- Laćan, Igor (2014) The Good Side of Pruning. UC IPM Green Bulletin 4, 4-5
- Laćan, Igor; Seybold, Steven (2014) Thousand Cankers Disease of Walnuts. UC IPM Green Bulletin 4, 2-3
- Laćan, Igor (2013) Pruning and Tree Physiology: The Bad and The Ugly. UC IPM Green Bulletin 4, 5-6
Non-peer reviewed
- Lacan, Igor (2023). Master Gardener Tree Planting Video. Goren, Bruce. https://www.youtube.com/watch?v=Z_VJ5joXtHc.
- Lacan, Igor; Roman, Lara (2023). Simple Tree Demographics: A primer and worksheet. June, 2023. https://ucanr.edu/sites/Igor/Simple_tree_demographics/
- Kelly, Tara; Lacan, Igor; Swain, Steven (2023). Sudden Oak Death (SOD) Identification Flow Chart Applicable to Coast Live Oaks in the Greater San Francisco Bay Area. July 2023.
- Kelly, Tara; Lacan, Igor; Swain, Steven (2023). Sudden Oak Death Management for Homeowners. 2. September 2023.
- Lacan, Igor; Kelly, Tara; Swain, Steven (2023). Watering mature trees during drought periods. 2. August 2023.
- Lacan, Igor; Kelly, Tara; Swain, Steven (2023). When to call an arborist: some signs and symptoms of concern. 2. March 2023.
- Lacan, Igor; Kelly, Tara (2023). Wood Decay Fungi: a guide for non-specialists. 54. April 2023.
- Sims, Laura; Lacan, Igor; Swain, Steven; Garbelotto, Matteo (2017). Phytophthora tentaculata, a new exotic and invasive disease. Western Arborist. Hagen, Bruce. Western Chapter of the International Society of Arboriculture. 43, 48-50.