Christopher A Greer

Area Cooperative Extension Advisor - Integrated Pest Management

UC Cooperative Extension San Luis Obispo County
2156 Sierra Way, Suite C
(cell: 805-888-1355)
San Luis Obispo, CA 93401
805-781-5161
cagreer@ucanr.edu

http://cesanluisobispo.ucanr.edu

Also in:
Santa Barbara County
Ventura County

Links

• UC Rice Project

Education

Ph.D. Plant Pathology, University of California-Davis. 1999

B.S. Bioenvironmental Sciences, Texas A&M University. 1991

Awards

• Certificate of Excellence - Educational Materials (Publications > 16 Pages Category)
  Presented by American Society of Agronomy,  2011
• Circle of Life Award
  Presented by California Rice Commission,  2009
• Distinguished Rice Reserach and Education Team Award
  Presented by Rice Technical Working Group,  2008
• Certificate of Excellence - Educational Materials (Publications < 16 Pages Category)
  Presented by American Society of Agronomy,  2006

Specialty

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

• Rice
• Plants and Their Systems
• Plant Genetic Resources
• Plant Management Systems
• Pathogens and Nematodes Affecting Plants
• Weeds Affecting Plants
• Natural Resources and Environment
• Watershed Protection and Management
• Water
• Commercial
• Ipm
• Endemic Species
• Invasives
• Weeds
• Sustainable Natural Ecosystems
• Endemic and Invasive Pests and Diseases
• Water Quality, Quantity, and Security
• Sustainable Food Systems

Bibliography

Peer Reviewed

• Calderon, J.; Acker, S., et al.; Elfar, K.; Greer, C.A.; Del Castillo Múnera, J. (2024). First Report of Sclerotinia minor Causing Soft Rot of Scabiosa atropurpurea in California. Plant Disease. St. Paul, MN, The American Phytopathological Society.
• Espino, L.A.; Greer, C.A., et al.; Al-Kahtib, K.; Grettenberger, I.M.; Brim-DeForest, W; Eckert, J.W.; Fischer, A; Lawler, S.P. (2024). UC IPM Pest Management Guidelines: Rice. UC ANR Publication 3465.
• ____, ____ (2018). Compendium of Rice Diseases and Pests, 2nd Edition.R. Cartwright, D. Groth, Y. Wamishe, C. Greer, L. Calvert, C. Vera Cruz, V. Verdier and M. Way. American Phytopathological Society. 121.
• Pagliaccia, Deborah; Urak, Ryan Z., et al.; Wong, Frank; Douhan, LeAnn I.; Greer, Christopher A.; Vidalakis, Georgios; Douhan, Greg W. (2018). Genetic Structure of the Rice Blast Pathogen (Magnaporthe oryzae) over a Decade in North Central California Rice Fields. Microbial Ecology. 75:2, 310-317.
• Greer, C.A. (2018). Section on Bakanae. In: Compendium of Rice Diseases and Pests, 2nd Edition.R. Cartwright, D. Groth, Y. Wamishe, C. Greer, L. Calvert, C. Vera Cruz, V. Verdier and M. and Way. American Phytopathological Society. 46-47. (revision of original 1992 edition section)
• Greer, C.A. (2018). Section on Seedling Blight. In: Compendium of Rice Diseases and Pests, 2nd Edition.R. Cartwright, D. Groth, Y. Wamishe, C. Greer, L. Calvert, C. Vera Cruz, V. Verdier and M. and Way. American Phytopathological Society. 22-23. (revision of original 1992 edition section)
• Greer, C.A. (2018). Section on Seedling Diseases. In: Compendium of Rice Diseases and Pests, 2nd Edition.R. Cartwright, D. Groth, Y. Wamishe, C. Greer, L. Calvert, C. Vera Cruz, V. Verdier and M. Way. American Phytopathological Society. 20-22. (revision of original 1992 edition section)
• Greer, C.A.; Cartwright, R.D. (2018). Section on Stem Rot. In: Compendium of Rice Diseases and Pests, 2nd Edition.R. Cartwright, D. Groth, Y. Wamishe, C. Greer, L. Calvert, C. Vera Cruz, V. Verdier and M. and Way. American Phytopathological Society. 35-37. (revision of original 1992 edition section)
• Montazar, A.; Rajmanek, H., et al.; Tindula, G.; Little, C.; Shapland, T.; Anderson, F.; Inglese, G.; Mutters, R; Linquist, B.; Greer, C.A.; Hill, J.; Snyder, R.L. (2017). Crop Coefficient Curve for Paddy Rice from Residual Energy Balance Calculations. Journal of Irrigation and Drainage Engineering. 143:2.
• Pittelkow, C. M.; Assa, Y., et al.; Burger, M.; Mutters, R.G.; Greer, C.A.; Espino, L.A.; Hill, J.E.; Horwath, W.R.; van Kessel, C.; Linquist, B.A. (2014). "Nitrogen management and methane emissions in direct-seeded rice systems." Agronomy Journal 106: 968-980.
• Linquist, B.A.; Ruark, M.D., et al.; Mutters, R.; Greer, C.; Hill, J.E. (2014). "Nutrients and sediments in surface runoff water from rice fields: implications for nutrient budgets and water quality." Journal of Environmental Quality 43: 1725-1735.
• Espino, L.; Greer, C., et al.; Mutters, R.; Thompson, J. (2014). "Survey of rice storage facilities identifies research and education needs." California Agriculture 68: 38-46.
• Strand, L.L. (2013). Integrated pest management for rice. Oakland: University of California Agricultural and Natural Resources.
• Pittelkow, C.M.; Fischer, A.J., et al.; Moeching, M.J.; Hill, J.E; Koffler, K.B.; Mutter, R.G.; Greer, C.A.; Cho, Y.S.; van Kessel, C.; Linquist, B.A. (2012). "Agronomic productivity and nitrogen requirements of alternative tillage and crop establishment systems for improved weed control in direct-seeded rice." Field Crops Research 130: 128-137.
• Redman, R.S.; Kim, Y.O., et al.; Woodward, C.J.D.A.; Greer, C.; Espino, L.; Doty, S.L.; Rodriguez, R.J. (2011). Increased fitness of rice plants to abiotic stress via habitat adapted symbiosis: a strategy for mitigating impacts of climate change. PLoS ONE. 6:7, e14823. 2011.
• Douhan, G.W.; de la Cerda, K.A., et al.; Huryn, K.; Greer, C.A.; Wong, F.P. (2010). "Contrasting genetic structure between Magnaporthe grisea populations associated with the golf course turfgrasses Lolium perenne (perennial ryegrass) and Pennisetum clandestinum (kikuyugrass)." Phytopathology 101: 85-91.
• Williams, J.F. (2010). Nutrient Management in California.C. Greer and R. Mutters. Oakland: University of California Agricultural and Natural Resources. Publication 3516, 136. 2010.
• Chaijuckam, P.; Baek, J., et al.; Greer, C.A.; Webster, R.K.; Davis, R.M. (2010). "Population Structure of Rhizoctonia oryzae-sativae in California Rice Fields." Phytopathology 100: 502-510.
• Rurak, M.D.; Linquist, B.A., et al.; Six, J.; van Kessel, C.; Greer, C.A.; Mutters, R.G.; Hill, J.E. (2010). "Seasonal Losses of Dissolved Organic Carbon and Total Dissolved Solids from Rice Production Systems in Northern California." Journal of Environmental Quality 39: 304-313.
• Linquist, B.A.; Hill, J.E., et al.; Mutters, R.G.; Greer, C.A.; Hartley, C.; Ruark, M.D.; van Kessel, C. (2009). "Assessing the necessity of Surface-Applied Preplant Nitrogen Fertilizer in Rice Systems." Agronomy Journal 101: 906-915.
• Linquist, B.; Fischer, A., et al.; Godfrey, L.; Greer, C.; Hill, J.; Koffler, K.; Moeching, M.; Mutters, R.; van Kessel, C. (2008). "Minimum Tillage Could Benefit California Rice Farmers." California Agriculture 62: 21-29.
• McKenzie, K.S.; Johnson, C.W., et al.; Jodari, F.; Oster, J.J.; Hill, J.E.; Mutters, R.G.; Greer, C.A.; Canevari, W.M.; Takami, K. (2006). "Registration of 'Calamylow-201'€™ Rice." Crop Science 46: 2321-2322.
• Hill, J.E.; Williams, J.F., et al.; Mutters, R.G.; Greer, C.A. (2006). "The California Rice Cropping System: Agronomic and Natural Resource Issues for Long-term Sustainability." Paddy Water Environment 4: 13-19.
• Choi, J.S.; Sumner, D.A., et al.; Webster, R.K.; Greer, C.A. (2003). Economic Consequences of a New Exotic Pest: The Introduction of Rice Blast Disease in California. Exotic Pests & Diseases: Biology and Economics for Biosecurity. Iowa State Press.: 215-224.
• Thomas, C.S.; Skinner, P.W., et al.; Fox, A.D.; Greer, C.A.; Gubler, W.D. (2002). "Utilization of GIS/GPS Based Information Technology in Commercial Crop Decision Making in California, Washington, Oregon, Idaho and Arizona." Journal of Nematology 34: 200-206.
• Greer, C.A.; Webster, R.K. (2001). "Occurrence, Distribution, Epidemiology, Cultivar Reaction, and Management of Rice Blast Disease in California." Plant Disease 85: 1096-1102.
• Greer, C.A.; Scardaci, S.C, et al.; Webster, R.K. (1997). "First Report of Rice Blast Caused by Pyricularia grisea in California." Plant Disease 81: 1094.
• Uyemoto, J.K.; Connell, J.H., et al.; Greer, C.A. (1996). "Effects of Union Mild Etch, a Newly Recognized Disorder, on Almond Scions Growing on Marianna 2624 Rootstock." Plant Disease 80: 1406-1408.

ANR Workgroup Associations

• Entomology - Member
• Pest Management in ANR - Member
• Plant Pathology - Member
• Precision Agriculture - Member
• Spray Application Technology - Member
• UAS (Drones) Workgroup - Member
• Vegetable Crops - Member
• Weed - Member

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