Potato Extension
Late Blight in Potato
The primary host is potato, but P. infestans also can infect other solanaceous plants, including tomatoes, petunias and hairy nightshade, that can act as source of inoculum to potato. In North America, late blight survives between seasons in infected seed tubers, cull piles and volunteer plants. Knowing the symptoms and disease cycle of this rapidly destructive disease is necessary to implement management options.
New Focus on Potato: Practical Management of Powdery Scab
This presentation will aid consultants and growers in understanding how to identify powdery scab of potato and manage this disease using an integrated approach to control. Key symptoms used to identify the various stages of the disease will be described and contrasted with other similar problems. Details of the pathogen, host, disease cycle, and environmental factors affecting symptom development, will be discussed. Much attention will be given to management options for this disease including avoiding the disease, measuring the inoculum load in soil, making the appropriate cultivar selections based upon the field history, resistance of a given cultivar, inoculum levels, and environment, and utilizing specific chemical control when warranted. Understanding the full integration of several different strategies for the producer are key to managing this potentially devastating and hard to control disease.
New Focus on Potato: Fungicide Management of Rhizoctonia Canker and Black Scurf
Rhizoctonia canker and black scurf causes economic loss to potato growers by decreasing tuber quality, and yield in severe cases. This webinar will focus on how fungicides can be used effectively to manage this disease.
2016 Crop Year Potato Research Reports
The research reports from potato trials funded by the MN Area II Potato Council and Northern Plains Potato Growers Association (NPPGA) from 2016 are now available. This reports cover agronomy, breeding, entomology, fertility, nematology, plant pathology, weed science and other important topics to potato growers.
Northern Plains Fresh Market Potato Cultivar/Selection Trial Results for 2016
A report on red- and yellow-skinned potato cultivar trial conducted in Big Lake, MN. Information on potato graded yield, tuber number, stems per plant and vigor estimation.
Managing Lenticel Spot on Potato Tubers
Lenticels in potato tubers are an unsightly blemish. These blemishes may reduce marketability of tubers and be an entry point for pathogens. Learn about how lenticel spot is caused and tips on managing this disorder.
MN Area II Short Course Schedule
The MN Area II Potato Growrs 26th Annual Educational Workshop will be held on March 1, 2017 at Jack and Jim's Event Center in Duelm, MN. This workshop gives us the opportunity to get together, learn and share ideas. We feel this program will be useful to everyone in the potato industry. We hope to see you there.
NDSU / U of M Potato Scout School
There has been much interest for the upcoming Potato Scout School. To attend, registration is required because the room size will only allow 50 participants. Registration fees will help cover costs for the room, lunch, and materials. CEU credits will also be available.
NPPGA Research Reporting Conference and ICE Schedules
The scheduled speakers and times are now available for the NPPGA Research Reporting Conference and International Crop Expo. The program planned is exciting and full of great content that will update potato growers about recent research and cover topics of importance.
Understanding Blemish Problems to Improve Marketing of Fresh Potatoes - Potato Expo poster
A challenge fresh market potato producers have is to produce tubers free from blemishes, because consumers “buy with their eyes” as they naturally gravitate to tubers free from blemishes. Smooth-skinned tubers are especially vulnerable to blemishes. This project conducted a survey to determine the major blemish problems, determined the effects of various chemistries on blemishes, and evaluated the effects of blemishes on newer cultivars. The most prevalent blemishes were skin netting and external bruising. Some fungicides reduced black dot/silver scurf blemishes. Those that were most consistent were Emesto Silver, Quadris, Nubark Mancozeb + Moncot 70 DF and Maxim 4 FS.
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