2022 TriSTate TourAberdeen, ID September 27th to 29th Hermiston, OR October 4th Klamath Falls, OR October 5th to 7th
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Seed Potato Germplasm ProgramThe University of Idaho Seed Potato Germplasm Program is responsible for providing disease free nuclear potato seed and germplasm in the Tri-States and Internationally. Contact Jenny Durrin for more information or to order germplasm or nuclear potato seed of PVMI varieties. ![]() The link to the program's website Seed Potato Germplasm Program |
New VideosBill Schaefer has created a wide variety of short videos that capture the activities of the Tri-State Potato Research and Breeding Program. The latest features Nora Olsen, describing Storage Management at the University of Idaho's Kimberly facility. To see this one and other videos, click on the "Videos" button to the left. The 2021 Tri-State Tour![]() One of many photos from the Tri-State Selection tour that took place in Hermiston and Klamath Falls during early October. See more photos below Growing Potatoes? Top Ten Best PracticesSee how closely you follow the advice of the experts.
Northwest Potato Industry: Revised Pest Management GuidelinesFollowing extensive revision and improvements this spring, the 2018 edition of the Integrated Pest Management Guidelines for Insects and Mites in Idaho, Oregon and Washington Potatoes is now available. Many thanks to Alan Schreiber, leader of this effort since the beginning in 2002, plus the many co-authors and contributors who have been involved over the years. www.nwpotatoresearch.com/pest-library/pest-management-options/ Andy Jensen, Northwest Potato Consortium Manager. PVMI Varieties have had their Fingerprints taken!!Dr. Vidyasagar (Sagar) Sathuvalli, Assistant Professor Potato Breeding and Genetics with his colleagues at Hermiston Agricultural Research and Extension Center (HAREC), Oregon State University, have established the SSR Fingerprints for the PVMI varieties as well as for some other common lines. These are now available.
For more information, contact: Sagar on 541 567 6337
2020 Royalty Form Available For Download
Go to the list of Documents and Agreements... »
Tri-State Russets ComparisonA Multi year review by Washington State University of several Tri-State lines shows impressive yields when compared to traditional russets. Potatoes and DiabetesResearchers at Montana State University have found that several varieties of potatoes could foil type 2 diabetes. Among them is Huckleberry gold. Read the entire article.
PVY, PMTV and TRV InformationAt blogs.cornell.edu/potatovirus
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New Clearwater Russet Management InformationConsider physiological maturity (PM) when deciding when to harvest: • Recognize that PM in Clearwater occurs when the crop still has ~60% green vines. • At PM, approximately half the crop will be in late stage bulking and the other half will be under dead vines in the skin-set phase of maturation where physiological age is accelerated by temperature. • The challenge is to minimize tuber exposure to diurnal fluctuations in soil temperature under dead vines without sacrificing the yield potential for tubers still bulking under green vines. To maximize both yield and storage potential in ‘green vine’ harvest, plan to lift the crop within 10-18 days of PM. For ‘vine-kill’ harvest, desiccate at ~155 DAP (~40 - 45% green vines) and harvest 7 - 14 days later. Adhere to best management practice recommendations for minimizing bruise and other mechanical damage for bruise-free incentives and to minimize dry rot potential. Prolonged maturation period under dead vines subjects the crop to diurnal fluctuations in temperature that accelerates tuber aging, which can affect retention of quality – dormancy length, weight loss potential, sugar buildup. Clearwater is resistant to low temperature sweetening (LTS) and means increased tolerance of delayed harvest beyond PM for maintaining low sugars and process quality during storage. Still tubers should be harvested as close to PM as possible (e.g., within 10-18 days of PM) to maximize retention of process quality during long-term storage. See the complete article for additional information.The University of Idaho and Washington State University have both published new Cultural Management guides for Clearwater Russet. Go to the variety page for Clearwater to find them both. Teton Russet?Updated Teton Russet Management Guidelines for Idaho reflect growth cracks dependent on irrigation.
Nitrogen Rates for PVMI VarietiesSuggested Full-Season Nitrogen Rates and Associated Petiole N03-N Values for Twelve Potato Varieties when Grown in the Columbia Basin of Washington and Oregon.
New Website and Refurbished Research LibrarySince 2012 the Washington, Idaho, and Oregon potato commissions have cooperated in research funding and management, and have called this cooperative venture the Northwest Potato Research Consortium. The Consortium has been represented on the Web by www.nwpotatoresearch.com, which included the ‘research library’ developed by the WSPC in the 2000s. Recently, a long-awaited redesign and reprogramming of the website was completed and is now live online. For those of you with research library passwords, your old login will work on the new site. For those without a login and password, there is a user-friendly means to request a password. I encourage everyone to have a look, and of course offer feedback anytime! Andy Jensen, Consortium Manager. New Cultural Management Recommendations. . . have been released for Mountain Gem Russet for the Columbia Basin of WA and OR Go to the Varieties page. Payette Russet StorageCheck out the recently released Payette Russet Storage Bulletin.
Zebra Chip (ZC)Essential information about Zebra Chip (ZC) in the Columbia Basin: Identification, Late Season Control, and Storage La Belle Russet (A06021-1T)The La Belle Russet Flyer has been updated.
Tri-States Specialty ReviewUSDA reviews Tri-State Specialty Potatoes AmaRosa, Purple Fiesta and TerraRosa |
The 2021 Tri State Tour



