About Us
Insightful and Innovative Winegrowing
Mark Greenspan, Ph.D., Viticulturist

Mark has nearly 25 years of viticultural experience, comprised of scientific, technical and practical field efforts. Mark’s background includes a Masters degree in Horticulture/Viticulture and a Doctorate in Agricultural Engineering, both from the University of California, Davis. He is one of very few private practitioners who have been elected as an honorary member of Gamma Sigma Delta, the Agricultural Honor Society. He holds CCA (Certified Crop Advisor) and CPAg (Certified Professional Agronomist) certifications from the American Society of Agronomy.

He is regarded as one of the world’s leading experts in winegrape irrigation and has 
written scientific and trade journal articles on the subject. In addition to his command of grapevine irrigation practices, he has extensive experience in vineyard mineral nutrition, crop load management, vineyard uniformity, grape maturation, weather, climate and viticultural technologies.

He frequently delivers presentations on numerous topics to his colleagues in the wine industry at venues ranging from small classrooms and vineyard tailgate meetings to large industry-wide symposia.Mark is a regular contributor to wine industry publications, including Practical Winery and Vineyard and Wine Business Monthly. He has penned a viticulture column for Wine Business Monthly continuously since 2005.

Alec Roser, Vineyard Manager

Alec has been developing and managing vineyards for over 10 years. He has developed vineyards throughout the coastal regions of California, including Napa, Sonoma, Marin and San Mateo counties. Alec's practical knowledge and can-do attitude allows us to provide expert vineyard management supported by technical expertise.

Advanced Viticulture, Inc.