Potato Extension

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Andy Robinson

Potato Extension Agronomist

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Potato Extension

Blightline June 26, 2017

Blightline June 26, 2017

No late blight has been reported in ND or MN. Late blight severity values continue to accumulate slowly.

Blightline June 26, 2017 - Read More…

Blightline June 20, 2017

Blightline June 20, 2017

No late blight has been reported in ND or MN. Late blight severity values are just beginning to accumulate, particularly in northeast North Dakota.

Blightline June 20, 2017 - Read More…

Colorado Potato Beetle Update

Colorado Potato Beetle Update

Several different locations in the Red River Valley are experiencing emerging Colorado potato beetles. Here is some information from Dr. Ian MacRae on this emerging issue.

Colorado Potato Beetle Update - Read More…

Blightline June 12, 2017

Blightline June 12, 2017

No late blight has been reported in ND or MN.

Blightline June 12, 2017 - Read More…

Welcome to Blightline 2017!

Welcome to Blightline 2017!

Welcome to the first NDSU Potato Blightline for 2017 sponsored by Syngenta Crop Protection. We are up and running for the 23rd consecutive year of operation. The Blightline includes disease forecasting and control recommendations for late blight and early blight, and other potato disease and insect information on a local and national basis. The Blightline is updated weekly, or more often if late blight is present, through mid-September.

Welcome to Blightline 2017! - Read More…

Controlling Volunteer Potato Plants

Controlling Volunteer Potato Plants

Volunteer potato plants are emerging in North Dakota and have been found in soybean and corn fields. Volunteer potatoes are a susceptible host for late blight, because they are not continually treated with fungicides. How can you control volunteer potato plants?

Controlling Volunteer Potato Plants - Read More…

Late Blight in Potato

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.

Late Blight in Potato - Read More…

Potato Seed Calculation

Potato Seed Calculation

A pertinent subject for the season is calculating planting rates. Here is a table that can help you calculate the amount of potato seed needed to plant at different row widths, within-row spacing, and by seed piece size. Formulas are available in the tables to enable to user to put their own numbers in if the preset numbers do not accurately represent planting on your farm.

Potato Seed Calculation - Read More…

New Focus on Potato: Practical Management of Powdery Scab

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: Practical Management of Powdery Scab - Read More…

New Focus on Potato: Fungicide Management of Rhizoctonia Canker and Black Scurf

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.

New Focus on Potato: Fungicide Management of Rhizoctonia Canker and Black Scurf - Read More…

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