National Clean Plant Network
National Clean Plant Network
National Clean Plant Network
University of California
National Clean Plant Network

NCPN Useful Links


Canadian government

The Canadian Food Inspection Agency (CFIA) is involved with the development of regional standards for phytosanitary measures (RSPMs)and international standards for phytosanitary measures (ISPMs).

North American Plant Protection Organization (NAPPO)
U.S. Agencies

APHIS - U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) provides leadership in ensuring the health and care of animals and plants.

USDA-ARS - U.S. Department of Agriculture (USDA) Agricultural Research Service
USDA-ARS National Plant Germplasm System is a cooperative effort by public (State and Federal) and private organizations to preserve the genetic diversity of plants. Click here to view an informative video that provides an overview of the USDA-ARS National Plant Germplasm System.
National and Regional Resources
citrus clonal protection program
The California Citrus Clonal Protection Program (CCPP) is part of the Department of Plant Pathology at the University of California at Riverside and is a cooperative program with the citrus growers of California, represented by the Citrus Research Board, the California Department of Food and Agriculture and the United States Department of Agriculture.

The Clean Plant Center Northwest (CPCNW) is a research and service center of Washington State University, based at the Irrigated Agriculture Research and Extension Center (IAREC) in Prosser, Washington. The CPCNW conducts diagnostics and therapy for eliminating viruses and virus-like agents in fruit trees, grapes, and hops. CPCNW serves as the headquarters for NCPN-Fruit Trees and NCPN-Hops, and is also a participating center in NCPN-Grapes.

FPSlogos (003)
Foundation Plant Services (FPS) is a public service department of the University of California, Davis. FPS’ primary activities are distributing plant material (including grape stock) and providing testing services to commercial nurseries. Materials maintained in the collection have passed tests for specific target virus diseases.
University of Arkansas
Fruit (including grapes) Breeding at the University of Arkansas
The Genetic Resources Information Network (GRIN) of the National Plant Germplasm System is a USDA-ARS database containing 4000 accessions.
Cornell University
Grapes and Wine at New York State Agricultural Experiment Station (Cornell University) in Geneva, New York.
NC State
The North Carolina Winegrape Grower’s Guide (North Carolina Cooperative Extension)
University of Minnesota

The University of Minnesota breeding program for wine grapes adapted to regions with cold winter temperatures.

Missouri State
The Clean Grapevine Program at Missouri State University was designed to screen (for virus) imported grape cultivars suitable for Missouri conditions. Selections (mostly from Eastern Europe) are propagated in research and commercial vineyard sites.
The National Clonal Germplasm Repository for Fruit and Nut Crops (USDA-ARS) is located in Davis, California. The NCGR is a federally-funded repository dedicated to collection, preservation and distribution of plant germplasm from around the world. A large collection of Vitis plant material, including rootstock, wine, table and species grape stock, is available to the public.
National Grape Research Alliance (NGRA) is a nationwide coalition representing grape growers, processors, wineries, and representatives of academic institutions and cooperative extension organizations committed to improving wine and grape production.
national Plant board
The National Plant Board is a non-profit organization of the plant pest regulatory agencies of each of the states and Commonwealth of Puerto Rico.

NE 1020 (Multi-state Evaluation of Winegrape Cultivars and Clones) is a research project designed to test the performance of the clones of major global cultivars and of new or previously neglected wine grape cultivars in U.S. wine grape growing regions. The goal is to provide performance and quality information needed for making planting decisions.

Florida State agriculture
Citrus Germplasm Introduction Program in Florida provides the Florida citrus industry with new citrus germplasm that is free of any known graft-transmissible citrus pathogens.
Northwest Berry and grape
Northwest Berry & Grape is an information network that covers grape and wine production in the Northwestern United States. There are direct links to viticulture and enology recommendations from Oregon State University, the University of Idaho, Washington State University and the USDA-ARS.
Penn State extension

The Penn State Wine Grape Network is a site for wine grape growers designed to assist growers with production techniques and the purchase/sale of grapes.

Texas A&M
The Texas Winegrape Network is an information source for wine grape growers produced by the Texas Cooperative Extension (Texas A&M University system) and Texas Tech University.
USDA-ARS, Geneva, New York is home to the Cold-Hardy Grape Collection. Over 1800 separate accessions of grape are held under commercial field conditions at the Clonal Repository Farm.
USDA-ARS, National Clonal Germplasm Repository for Citrus & Dates is a repository to collect, maintain, evaluate, preserve, and distribute germplasm of citrus, dates, and related Aurantioideae genera and Phoenix species.
The Vitis International Variety Catalogue is an extensive searchable database maintained by the Institute for Grapevine Breeding in Geilweilerhof, Siebeldingen, Germany. The site contains technical information (and some pictures) for grape varieties throughout the world.


NCPN LogoThe National Clean Plant Network (NCPN) produces and distributes asexually propagated plant material free of targeted graft transmissible plant pathogens to ensure the global competitiveness of specialty crop producers and to protect the environment. 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).



Hosting for this website provided by:


Webmaster Email: