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NCPN Grapes
NCPN Grapes
NCPN Grapes
University of California
NCPN Grapes

About NCPN Grapes

The National Clean Plant Network for 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. 

Virus diseases in grapevines

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.  

The economic benefits

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).

Functions of the NCPN for Grapes

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. 

 

The Foundation Vineyard is tested annually for over 30 pathogens.
The Foundation Vineyard is tested annually for over 30 pathogens.

 

Grape cluster from a healthy vine (left) vs. a leafroll- infected vine (right).
Grape cluster from a healthy vine (left) vs. a leafroll- infected vine (right).

 

Dormant grape cuttings.
Dormant grape cuttings.

 

Plants are tested in the lab using many different methods including qPCR.
Plants are tested in the lab using many different methods including qPCR.

 

Excising meristem tips to eliminate virus.
Excising meristem tips to eliminate virus.

 

Grape explants grow into a small plant from a meristem in an average of 7 months.
Grape explants grow into a small plant from a meristem in an average of 7 months.

NCPN LogoThe National Clean Plant Network (NCPN) is a voluntary association of specialty crop networks that have joined to promote the use of pathogen-tested, healthy plant material for food crops in the United States. The NCPN operates under the auspices of three agencies within the United States Department of Agriculture - Animal and Plant Health Inspection Service (APHIS), Agricultural Research Service (ARS) and National Institute of Food and Agriculture (NIFA).

 

 

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