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Pale Cyst Nematode

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White potato cyst nematode
Scientific Name:
Globodera pallida Stone 1973 (CABI)
Formerly known as Heterodera pallida
Common Name:
Pale cyst nematode (PCN), white potato cyst nematode
White potato cyst nematode symptoms - Photo by Bonsak Hammeraas; The Norwegian Institute of Bioeconomy Research,


  • GLOBAL: Globodera Alliance.
    GLOBAL is a five-year $3.2 million project funded by USDA. The project title is "Risk assessment and eradication of Globodera spp. in U.S. production of potato", with research focused on the potato cyst nematodes Globodera pallida (pale cyst nematode), G. rostochiensis (golden nematode), and the related species G. ellingtonae that has recently been found in Oregon and Idaho. GLOBAL stands for "Globodera Alliance", a group of 17 research, extension, and education professionals, located in Idaho, Oregon, New York, Canada, Scotland, and France. GLOBAL members include faculty from the University of Idaho, Oregon State University, Cornell University, US Department of Agriculture (USDA), Agriculture and Agri-Food Canada, The James Hutton Institute, and the French National Institute for Agricultural Research.
Native To:
South America (Trudgill et al. 2006)
Date of U.S. Introduction:
First discovered in Idaho in 2006 (APHIS 2015)
Means of Introduction:
Mainly through the movement of contaminated soil (APHIS 2015)
Major pest of potatoes and related crops; uncontrolled infestations can reduce yields by 80% (APHIS 2015)

Distribution/Maps/Survey Status




Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Pale Cyst Nematode.


Agriculture & Horticulture Development Board (United Kingdom).

Federal Government

USDAAPHIS. Plant Protection and Quarantine.

International Government

Food and Environment Research Agency (United Kingdom).
See also: Pest and Disease Factsheets for more resources
Ministry of Environment and Food of Denmark.

Canadian Food Inspection Agency.

Australian Government. Department of Agriculture and Water Resources.

New South Wales Department of Primary Industries (Australia).

State and Local Government

Minnesota Department of Agriculture.


Michigan State University. Integrated Pest Management Program.
See also: Forecasting Invasion Risks for more factsheets
University of Nebraska - Lincoln.