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Washington State University

Seed Potatoes

Industry Information

WA State Seed Potato Commission


Cultural Management

Commercial Potato Production in North America (pdf)
This 90-page guide gives an overview of potato production including: marketing and economics, potato cultivars, growth requirements, planting, growing potatoes, harvesting, and storage. The Potato Association of America, October 2010


Pest Management

Potato Virus Y Management for the Seed Potato Producer (pdf)
A practical guide to help identify symptoms and management options to reduce vector and virus incidence. University of Idaho Extension, August 2009

Managing Late Blight on Irrigated Potatoes in the Pacific Northwest (pdf)
Recognizing symptoms and understanding the organism that causes late blight on potatoes are key to control of this disease. Color photos and a disease development chart show signs and progression of late blight at different stages. Pacific Northwest Extension Publication, February 2003

Characterization of Phytophthora infestans Populations in Western Washington (pdf)
This paper characterizes genetic variation of P. infestans in Western Washington and the implications for management. The American Phytopathological Society, May 1999

Colonization and Sporulation of P. infestans on Volunteer Potatoes (pdf)
Recent research evaluating growth of P. infestans under western Washington conditions. Washington State University, 2009

Bacterial Soft Rot and Lenticel Spot on Potato Tubers (pdf)
This publication discusses symptoms, disease cycle, and management approaches for lenticel spot and soft rot on potato. Washington State University Extenson, 2011

Silver Scurf Management in Potatoes (pdf)
Silver scurf, caused by a fungus, was identified as a problem to potato production in just the past 20 years. The greatest damage can occur in storage. This publication describes the symptoms and disease cycle and mangement tactics. Pacific Northwest Extension Publication, August 2007

Potato Leaf Roll (pdf)
Causes, symptoms, and management for potato leaf roll, a viral disease which is particularly problematic in the production of late potatoes. Washington State University, 2005

Sclerotinia Stem Rot in Potato
Also called white mold, sclerotinia stem rot is caused by a rapidly spreading fungus that becomes a problem under moist conditions in the Pacific Northwest. Washington State University, July 1994

Biology and Management of the Potato Tuberworm in the Pacific Northwest (pdf)
The potato tuberworm is an important pest worldwide, and has become a major concern for potato production in the Pacific Northwest in the last 5 years. This publication describes the distribution and biology of this pest, and control methods including cultural, chemical, and biological methods. Pacific Northwest Extension Publication, 2007

Colorado Potato Beetle
Life history, hosts, damage, control. Color photos of egg, larval, and adult stages. Chemical products not listed. Washington State University Extension, April 1995

Potato Flea Beetle: Biology and Control (pdf)
Found mostly in potato and tomato crops of western Washington, the potato flea beetle also attacks many other crops. This publication describes species, life cycle, damage, and control. Washington State University Extension, 2001

Wireworm Biology and Nonchemical Management in Potatoes in the Pacific Northwest (pdf)
This publication reviews the wireworm literature and provides information on wireworm identification, biology, crop damage, monitoring, risk assessment, and nonchemical control options that can be integrated into a variety of production systems. Pacific Northwest Extension Publication, 2008

Late Blight of Potato and Tomato and Its Control in the Home Garden
This disease is caused by Phytophthora infestans, a fungus common on potato and tomato in wet years. Plants, fruit, and tubers can be destroyed by it. Washington State University Extension

Volunteer Potato Management (pdf)
This bulletin is intended to provide current information for volunteer potato management in the PNW. It discusses the biology and ecology of the weed, its burden to production systems, and potential management strategies. Washington State University Extension, 2005

Using Green Manures in Potato Cropping Systems (pdf)
This publication discusses why use green manures, how green manures help manage pests, interaction of pest control mechanisms, factors to consider, and getting started with green manures, plus a list of other resources. Washington State University, 2003