USDA - APHIS - Plant Health, Plant Protection and Quarantine

Potato Nematodes

Pale Cyst Nematode

Background
The pale cyst nematode, Globodera pallida, is a major pest of potato crops in cool-temperate areas. It primarily affects plants within the potato family including tomatoes, eggplants, and some weeds. If left uncontrolled, pale cyst nematodes can cause up to 80 percent yield loss in potato fields.

News and Information

APHIS Publications
- Pest Alert: Potato Cyst Nematodes
- Potato Cyst Nematode National Survey Plan: Looking To Keep Potato Markets Open
Stakeholder Updates
On-Line Resources

Maps

Regulated Fields Maps (including location descriptions and basis for changes)
- Questions and Answers about the March 2011 Pale Cyst Nematode (PCN) Detection in Idaho (PDF; 114 Kb)

Plans

Potato Cyst Nematode National Survey Plan (PDF; 262 Kb)
Potato Cyst Nematode Guidelines - Guidelines on Surveillance and Phytosanitary Actions (PDF; 273 Kb)
Potentially Actionable Suspect Samples and Cyst Nematodes Affecting Potatoes (PDF; 49 Kb)

Regulations

SPRO Letters and Federal Orders
- Addition of Regulated Areas in Idaho (7/3/12) (PDF; 9 Kb)
- Addition of Regulated Areas in Idaho (2/28/12) (PDF; 16 Kb)
- Addition of Regulated Area in Idaho (8/29/11) (PDF; 16 Kb)
- Addition of Regulated Area in Idaho (5/13/11) (PDF; 20 Kb)
- Potato Cyst Nematode (PCN) in Alberta, Canada (1/16/09) (PDF; 11 Kb)
- Federal Domestic Quarantine Order: Interstate Movement Restrictions and Detection Survey (8/28/06) (PDF; 31 Kb)
Federal Register Notices
PCN Regulations: 7 CFR 301.86 .pdf.

Response

Environmental Documents
Program Updates
Best Management Practices
- Best Management Practices for Preventing Spread of Potato Cyst Nematodes (PDF; 12 Kb)
- Sanitation Tracking Form .docx, .pdf, .xlsx

Scientific Information

Technical Working Group
- February 2012 Meeting (PDF; 233 Mb)

Contacts:
Jonathan Jones
Telephone: 301-851-2128
E-mail: Jonathan.M.Jones@aphis.usda.gov