Roger A Duncan
Title: Farm Advisor

Specialty: Almonds, Peaches, Grapes, misc. tree fruit

Unit: Stanislaus County
3800 Cornucopia Way
University of California Cooperative Extension, Suite A. Corner of Service and Crows Landing
Suite A
Modesto, CA 95358
(209) 525-6800
Fax: (209) 525-6840
http://cestanislaus.ucdavis.edu
Email: raduncan@ucdavis.edu
 
Bio: My responsibilities in Stanislaus County include conducting research and education programs for an industry of approximately 120,000 acres of almonds, peaches, and wine grapes and to serve as a source of information for pistachio growers and other tree fruit species. Although Stanislaus County is a major agricultural area, my large clientele base (2125 farms) is comprised mostly of small acreage growers, where approximately 75% of the farms are 40 acres or less. My research efforts include evaluation of rootstocks, pruning systems, alternatives to pre-plant fumigation, labor reduction in peaches, tree fertility and all aspects of integrated pest management.