Agronomy Advisors

Ryan Hill

• UCCE Agronomy and Weed Science Advisor
• Shasta, Tehama, and Glenn Counties
• Office: 530-527-3101
• rjahill@ucanr.edu
• UCCE Tehama County, 1754 Walnut Street, Red Bluff, CA 96080

Nicholas Clark

• UCCE Agronomy and Nutrient Management Advisor
• Kings, Tulare, and Fresno Counties
• Office: 559-852-2788
• neclark@ucanr.edu
• 680 Campus Drive, Suite A, Hanford, CA 93230

Michelle Leinfelder-Miles

• UCCE Delta Crops Resource Management Advisor 
• San Joaquin, Contra Costa, Sacramento, Solano, and Yolo Counties
• Office: 209-953-6100
• mmleinfeldermiles@ucanr.edu
• 2101 East Earhart Avenue, Suite 200, Stockton, CA 95206

Emeritas Faculty

Stephen Kaffka

• Emeritus Professor of Cooperative Extension and Specialist
• Office: 530-752-8108
• Cell:  530-304-6603
• srkaffka@ucdavis.edu
• https://biomass.ucdavis.edu
• Department of Plant Sciences, University of California, Davis 95618, 283 Hunt Hall

Rachael Long

• Emeritus Farm Advisor for Field Crops, Pest Management
• rflong@ucanr.edu
• http://cecapitolcorridor.ucanr.edu
• http://ccpestmanagement.ucanr.edu