Professor and Cooperative Extension Specialist at UC Davis for alfalfa and forage cropping systems, and Chair, UC Alfalfa Workgroup. This position entails statewide responsibility for extension and research activities related to alfalfa and forage crops. Conducts research and educational activities (field days, symposia, newsletters, websites) pertaining to forage crops. Conducts field and laboratory research related to alfalfa and harvested forage crops. Works closely with CE Farm Advisors in the counties, with UC scientists, and with the alfalfa industry in California. Currently chair of the California Alfalfa Symposium, and past president of the National Forage Testing Association. Other interests include introduction of new crop species, crop ecology, and forage quality analysis methods.