2022 WASHINGTON STATE COMMERCIAL SEED LOT PROFILE AND POTATO FIELD DAY PREVIEW

2022 WASHINGTON STATE COMMERCIAL SEED LOT PROFILE AND POTATO FIELD DAY PREVIEW- MARK PAVEK, ZACH HOLDEN, TIM WATERS, CARRIE WOHLEB,RAUL GARZA JR. AND VITO CANTU     WASHINGTON STATE UNIVERSITY

Washington State University has conducted the Commercial Seed Lot Trial in cooperation with the Washington State Potato Commission and industry for 59 years (1961-78, 1982-2022). We incorporate a virus/disease reading training session into our program as a routine requirement prior to the first field reading. The goal of the training session is to improve our plant-reading accuracy by training the unexperienced and fine-tuning the expert. Plant disease experts from across the NW, including the Washington, Montana, and Oregon potato seed certification teams, continue to assist in the seed lot readings as well as the proof-readings. The results will be available under "2022 Washington Commercial Seed Lot Trials" at www.potatoes.wsu.edu.

Poor quality potato seed will impact commercial grower income. Major quality factors are disease, virus, herbicide damage, frost damage, and seed-piece handling. Commercial potato growers in Washington State typically purchase their seed potatoes from seed-growing regions which typically lie outside of Washington. For quality control, it is essential that each seed lot be grown under controlled conditions for approximately 70 days and evaluated by professionals. The Seed Lot Trial provides Washington potato growers, seed suppliers and handlers a side-by-side comparison of seed lots utilized by Washington commercial potato producers. The associated potato field day provides potato buyers and sellers an opportunity to observe performance of seed lots of common interest and discuss result. To improve field disease diagnostic skills, WSU, USDA, and potato industry personnel from across the western U.S. exchange ideas and share expertise on field diagnosis of disease symptoms and other seed tuber quality factors.

Read the complete Potato Progress Potato Field Day Preview here.

The potato field day program starts at 8:55 am on THURSDAY, June 23 at the WSU Othello Research Farm (see program below). As a special treat, a potato disease-sniffing dog and her owner will provide a demonstration targeting Potato Virus Y. In addition, you will be able to view this year’s seed lots and participate in one of two concurrent sessions. Sessions I and II will allow you to view a sample of this year’s in-field research. Both sessions will offer CCA recertification credits; however, only session II (pest management tour) will offer WA, OR, and ID pesticide recertification credits. A hosted lunch, offered between 12:00 and 1:00 pm, will complete the field day. The agenda, seed lot information, and a map to the research center can be found on our website: www.potatoes.wsu.edu. For the program, see below.

WSU Potato Field Day – Thursday June 23, 2022

Located at WSU Othello Research Unit – 1471 W Cox Rd, Othello (4.5 miles east of Hwy. 26/17 Junction, On Booker Rd, ¼ Mile South of Hwy. 26)

8:30–8:55 am Coffee and donuts

8:55-9:00 am Sponsors recognition

9:00-9:15 am Dog demo: A black Lab, Zora, will sniff out PVY, Andrea Parish - Nose Knows Scouting

9:15-9:20 am Potato Virus Y Demo Introduction, Mark Pavek – WSU Pullman, Jonathan Whitworth (USDA-ARS, Idaho) Nina Zidack (MSU, Bozeman) and Alex Karasev– UI, Moscow

9:20-10:00 am Commercial Seed Lot Trial and Potato Virus Y Demo Interactive Viewing, Mark Pavek – WSU Pullman, Jonathan Whitworth (USDA-ARS, Idaho) Nina Zidack (MSU, Bozeman) and Alex Karasev– UI, Moscow

Concurrent Session I: Potato Cultural Management Practices Field Tour

10:10 Promising chip and specialty selections from the Tri-state Breeding Program- Vidyasagar “Sagar” Sathuvalli – OSU, Hermiston

10:25 Breeding for Columbia root-knot nematode resistance. Max Feldman– USDA-ARS, Prosser

10:40 Ongoing potato physiology trials and program update. Jacob Blauer – WSU, Pullman

10:55 Impact of planting date on physiological age and seed performance. Morgan Southern and Jacob Blauer – WSU, Pullman

11:10 Role of seed wound healing intervals on field performance and environmental factors regulating periderm development. Conor Buckley and Jacob Blauer – WSU, Pullman

11:25 Maximizing economic return by optimizing seed management practices for potato. Alexa Hintze, Zach Holden, Rudy Garza, Vito Cantu, and Mark Pavek – WSU, Pullman & Othello

11:40 Long season varieties: nitrogen application timing, potato canopy growth, and crop maturity. Mark Pavek, Jacob Meeuwsen, Zach Holden, Rudy Garza, Vito Cantu – WSU, Pullman

11:55 am – 1:00 pm HOSTED LUNCH

Concurrent Session II: Potato Pest Management Field Tour

10:00 Potato Virus Y strains circulating in the PNW across the past 10-11 years. Alex Karasev– Univ. of Idaho, Moscow

10:20 Solutions for Potato Virus Y control. Jonathan Whitworth – USDA-ARS, Aberdeen, ID

10:40 Alternative methods to initiate sprouting in potatoes to facilitate PVY testing. Nathan Gelles and Nora Olsen – Univ. of Idaho, Kimberly

11:00 Classification of potato pathogenic and non-pathogenic strains of Verticillium dahliae with hyperspectral images Sudha Upadhaya, C. Zhang, S. Sankaran, T. Paulitz, and D. Wheeler – WSU

11:20 Control of Colorado potato beetle. Tim Waters – WSU, Benton/Franklin Counties

11:40 Potato mop-top virus in Washington seed lots. Kylie Swisher Grimm, R. Quick, L. Cimrhakl, C. Brown, Z. Holden, R. Garza, V. Cantu, & M. Pavek

12:00 pm – 1:00 pm HOSTED LUNCH

CCA and pesticide recertification credits have been applied for (WA, OR, & ID)