Virus Surveys of commercial vineyards show value of planting certified vines
Authors
Kari Arnold , UC Cooperative Extension
Neil McRoberts, UC Davis
Monica Cooper, UC Cooperative Extension
Rhonda J. Smith, UC Cooperative Extension
Deborah A. Golino, UC Davis
Publication Information
California Agriculture 73(2):90-95. https://doi.org/10.3733/ca.2019a0006
Published online May 31, 2019
Abstract
Viruses are of great concern in vineyards. They cost the California wine grape industry as much as $91,661 per acre over the life of a vineyard, according to a 2015 economic study of the North Coast wine-growing region. As a first step towards managing viruses, growers are encouraged to plant certified material regulated by the California Registration and Certification program. There are risks in sourcing material from stocks that are not subject to the same level of regulation. We surveyed vineyards of varying ages for eight common viruses to demonstrate the value of selecting certified material for new plantings.