Potato Extension
North Dakota Fresh Market Potato Cultivar/Selection Trial Results for 2019
This article contains the results of the 2019 non-irrigated red- and yellow-skinned trials. Trials were conducted near Hoople, ND in a commercial field. The cultivars or advanced selections grown were selected based on grower interest and industry needs.
Keep Calm and Keep Eating Potatoes
The French fry supply is being questioned if it will cause a shortage this year. Most years a surplus of potatoes are produced, but it seems this year's supply is much tighter. There was an estimated 93% of potatoes harvested in the United States. There's no need to panic. My advice, keep calm and keep eating potatoes.
Tater Talk: Fresh Potato Results 2019
Come learn about the different advanced selections and cultivars of red and yellow potatoes we tested this year. Date: December 6, 2019 Time: 10:00 -12:00 pm Location: NPPGA Office, 420 Business Hwy. 2, East Grand Forks, MN
Effect of potato tubers left in the field on the 2020 crop
With the large amount of potato tubers left in the ground, there have been many asking how this will influence the 2020 crop. Because potatoes are about 80% water, they will freeze in the ground and typically stay frozen until spring, storing nutrients and water until the next growing season. Potato plants take in a large amount of nutrients, when compared to other row crops. To estimate the amount of nutrients that could be left in the soil for 2020, take into account the expected yield (Table 1).
Late Harvest Thoughts
Here are some thoughts and pointers for late season harvest. Good luck getting out the crop. Thank you for being potato farmers and providing a nutritious, healthy food.
Potato Pink Eye
This past year there were numerous cases of Pink eye. This is a physiological disorder most consistently caused by excessive moisture, warm temperatures, loss of foliar canopy and soil compaction. This syndrome gets its name because it can be expressed as a pinkish color and raised areas on the tuber surface. In some cases, Pink eye can develop into corky areas on the tuber skin, often described as elephant hide or corky patch.
Late blight spore trapping network report, August 26-September 9
This is the last late blight spore trap report for 2019. No late blight has been found in the spore traps in Minnesota and North Dakota. The number of spore traps being delivered to the lab have decreased because of the end of the growing season. The traps from August 26 to September 2 found no late blight spores (Figure 1). The week of September 2 – 9 also reported no late blight spores found (Figure 2). As the legend in the map indicates, green dots indicate no late blight spores recovered at the marked locations and grey dots indicate no report. If there are comments on this project or if you’d like to host a trap on your farm in the future, please email me.
Blightline Sep 9, 2019
Late blight is NOT reported in ND, MN or MB. Some fields have been vine-killed or harvested already, but it is important to monitor fields that remain green for the next week or two. Late season outbreaks can result in tuber infection and secondary soft rot in the field or storage. Stay on the lookout for late season disease, especially near pivots, shelterbelts and other areas that stay wet for longer periods. It has been a good season so far with no late blight. This will be the last regularly scheduled NDSU Potato Blightline for 2019 unless late blight is found. We anticipate the Blightline continuing in 2020.
Late blight spore trapping network report August 19-26, 2019
No late blight has been found in the spore traps scattered in Minnesota and North Dakota. However, three spore traps from Manitoba reported finding late blight spores this week. An updated report from August 12-19 is provided in Figure 1. The week of August 19-26 reported no late blight spores found (Figure 2). As the legend in the map indicates, green dots indicate no late blight spores recovered at the marked locations and grey dots indicate no report.
Late blight spore trapping network report August 12-19, 2019
More filters arrived for the week of August 5-12. An updated report for this time period found no late blight spores during this time period (Figure 1). The week of August 12-19 reported no late blight spores in the 14 traps that arrived (Figure 2). As the legend in the map indicates, green dots indicate no late blight spores recovered at the marked locations and grey dots indicate no report.
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