About NCPN Grapes
is an association of clean plant centers, scientists, educators, state and federal regulators, and nurseries and growers from the wine, table, raisin and juice grape industry that act together to ensure that grapevine budwood and rootstock is clean and available. It was established in the 2008 Farm Bill and is part of the USDA's NCPN specialty crops network.
reduce yield and fruit quality and, once plants are infected there is no cure. Viruses are often spread through infected planting stock and are not noticed until a vineyard is established for several years.
of starting a planting with clean stock are huge. For example in the Northcoast region of California the benefits of starting with clean planting stock have been documented to exceed $50 million per year (Fuller, K. B., J. M. Alston, and D. A. Golino, 2015). In New York's Finger Lake regions, planting clean plants could raise net returns by $9,693 to $16,014 per acre over a 25-year life of the vineyard by eliminating grapevine leafroll virus (Gomez, M. et. al, 2010).
Distribution. Clean, tested propagation material is provided to nurseries and growers throughout the United States.
Foundation Vineyards. Extensive collections of grapevines are established, maintained and regularly monitored for health status.
Diagnostics. Plants are rigorously tested for viruses using laboratory and field tests. Network members develop state-of-the-art techniques for detecting pathogens as well as establish diagnostic guidelines and standards.
Importation. New cultivars are imported and then quarantined to reduce the risk of introducing pests and diseases that can be difficult and costly to control.
Therapy. Viruses are eliminated from valuable plant cultivars using microshoot tip culture.