News on Potato Defects and Diseases from Wisconsin

From research to the fields, it's a partnership built on trust and innovation." – Andy Diercks, Potato Farmer at Coloma Farms and Amanda Gevens, UW–Madison Plant Pathology Specialist
March 09, 2025
UW–Madison researchers and Wisconsin farmers work together to produce healthy potato harvests
Andy Diercks, a fourth-generation potato farmer from the small village of Coloma in central Wisconsin, is blunt about the difficult realities facing family-owned farms today.
‘Super pest’ Colorado potato beetles have the genetic resources to sidestep their attacks
February 21, 2022
Colorado potato beetles have the genetic resources to sidestep our insecticides
The Colorado potato beetle has evolved resistance to more than 50 different kinds of insecticides, making the insect a 'super pest' that wreaks havoc on potatoes around the world.
Researchers using advanced imaging to detect blight in potatoes.
October 14, 2019
Researchers using advanced imaging to detect blight in potatoes
Researchers in the WARF Accelerator program are using advanced imaging technology to detect late blight in potatoes, which famously led to the Irish potato famine in the mid-nineteenth century.
NPC scholarship goes to Wisconsin student studying silver scurf disease.
September 20, 2019
National Potato Council scholarship goes to Wisconsin student studying silver scurf disease
The National Potato Council (NPC) has named University of Wisconsin-Madison graduate student Sofia Giron the winner of its annual $10,000 scholarship. Giron is a fourth-year grad student studying plant pathology.
Late blight has been confirmed in a potato field in central Wisconsin.
August 13, 2019
Late blight detected in central Wisconsin, southern Washington
Late blight has been confirmed in a potato field in central Wisconsin.
The Colorado potato beetle’s rapid spread, hardiness, and recognizable tiger-like stripes have caught global attention since it began infesting potatoes in the 1800s (Courtesy: Zach Cohen)
February 01, 2018
Genome of the Colorado Potato Beetle studied as a model species for agricultural pest
The Colorado potato beetle is notorious for its role in starting the pesticide industry - and for its ability to resist the insecticides developed to stop it. Now scientists have sequenced the beetle’s genome, probing its genes for clues to its surprising adaptability.
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Microtuber potato cultivars used in research by the Wisconsin Seed Potato Certification Program in a growth room at the Biotron Laboratory at UW–Madison (Courtesy: Bryce Richter)
August 05, 2017
New Wisconsin State laws force potato growers to apply best practices
Wisconsin Governor Scott Walker signed two new measures involving the potato industry last Wednesday. One law makes use of certified seed potatoes mandatory, the other enforces a faster response to the presence of late blight
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Microtuber potato cultivars used in research by the Wisconsin Seed Potato Certification Program inside an environmentally-controlled growth room at the Biotron Laboratory at UW–Madison. (Courtesy: Bryce Richter)
May 09, 2017
From test tube to plate, UW–Madison program keeps potatoes clean
Years before that french fry landed on your plate, the plant that would eventually give rise to the spud your fry was cut from was sealed away deep in a secure-access building, growing slowly in a test tube inside a locked growth chamber.
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Justin Clements, a fifth year doctoral student in the Molecular and Environmental Toxicology Center working in the Department of Entomology at the University of Wisconsin-Madison, is the recipient of the 2016-2017 National Potato Council Academic Scholars
August 17, 2016
National Potato Council Awards Academic Scholarship for Potato Research to Justin Clements
Justin Clements, a fifth year doctoral student in the Molecular and Environmental Toxicology Center working in the Department of Entomology at the University of Wisconsin-Madison, is the recipient of the 2016-2017 NPC Academic Scholarship.
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Researchers discovered that in this wild variety of potato (Solanum Microdontum) Calcium levels are about seven times higher than in a regular potato. They developed a molecular marker to facilitate the transfer of the high Calcium trait to newly bred pot
February 24, 2016
Molecular Marker for high Calcium trait can help breeding better potato varieties
Researchers discovered that in a wild variety of potato (Solanum Microdontum) Calcium levels are about seven times higher than in a regular potato. They developed a molecular marker to facilitate the transfer of the high Calcium trait to newly bred potato varieties.
From the archive
The webcast "Managing Diseases with Biopesticides in Potato Production" will presented by Amanda Gevens, Ph.D., Assistant Professor, Extension Plant Pathologist, University of Wisconsin-Madison
August 30, 2015
Focus on Potato Webcast by Amanda Gevens Covers Biopesticide Use
A new 'Focus on Potato' webcast titled “Managing Diseases with Biopesticides in Potato Production” helps growers, consultants, and other practitioners in the potato industry understand the basics of biopesticides and their use in the field.
From the archive
Late Blight threatens Wisconsin Potato Fields
July 24, 2014
Late Blight threatens Wisconsin Potato Fields
A potato disease known as Late blight is threatening some Wisconsin potato fields, but growers are well aware and making strides to prevent it from spreading.
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