b'Minnesota Certified Seed Potato And Post Harvest Winter Test ReportBy Eric Byre, Plant Protection Program SupervisorThe31seedpotatogrowersinMinnesota entered 6,134 acres for the2019 crop year, a slight increase fromthe 5,932 acres in 2018. Growers experienced a cool, late spring,with the northern tier of the state expe-riencing delays in planting due to snowthrough April. Most growers were in thefield and planting in May, with all com-pleted by mid-June. As the growing sea-sonprogressed,thetemperatures This is a photoof our PHWT Plot in Hawaii on January 7th, 2020. warmed,rainfellconsistently,and (Photo courtesy of Jeff Miller.)growerswereexcitedaboutpotential certifiedseedpotatolots.Ultimately, Red varieties accounted for the largestyields.TheMinnesotaDepartmentof 627 acres were rejected due to excessive percentageoftotalacreageplantedatAgriculture (MDA) inspectors were busy, mosaic, varietal mix, and not meeting 44%, with Dark Red Norland account-with three inspections conducted on all eligibility requirements.ing for most reds. Russet varieties madeWinter Test Crop Year 2019 By AcreageClass Entered Passed Failed %Passed %Failed 2018 %PassedG1 12.62 12.62 0 100% 0% 100%G2 146.75 146.75 0 100% 0% 94%G3 693.37 409.32 284.05 59% 41% 92%G4 2,106.24 1,554.99 551.25 74% 26% 84%G5 244.90 129.80 115.10 53% 47% 51%G6 47.00 45.00 2.00 96% 4% 32%C 114.50 17.00 97.50 15% 85% 0%Totals 3,365.38 2,315.48 1,049.90 69% 31% 77%26 POTATO GROWER MARCH 2020'