News on Potato Defects and Diseases from the United States

Potato farming brothers Aaron Johnson of Northwood and Derek Johnson of Vancouver, B.C., will spend time in federal prison in the Federal Prison Camp in Duluth, Minn., and are jointly responsible for restitution of nearly $1 million because of crop insurance fraud.

Of the more than 100 diseases of potato, bacterial ring rot is one of the few zero-tolerance pests. If just one seed potato on a farm is found to have this disease, no seed on that farm can be certified.

Levels of zebra chip, a crop disease in potatoes spread by potato psyllids and caused by the Liberibacter bacterium, were down signficiantly in the Pacific Northwest.

Officials with Idaho’s pale cyst nematode eradication program say they’ve discovered three more infested fields totaling 994 acres since October, including two fields that had previously been deregulated from the program.

El tizón tardío de la papa puede ser controlado con varias estrategias, incluyendo la resistencia del huesped. Desafortunadamente, los esfuerzos hasta la fecha para utilizarla han llevado a un éxito limitado. Este es el tema principal del artículo escrito por G. A. Forbes; M. Huarte para la Revista Latinoamericana de la Papa, Volumen 18 (2), 2014.

Key Technology introduces hyperspectral imaging on its popular ADR® 5 automatic defect removal system for potato strips to detect and remove sugar ends.

Growers of the potato variety Lamoka used for chip processing have seen a higher than normal incidence of blackleg in their fields this summer.

Phosphorous acid based products can be an effective control for postharvest diseases when applying best practices. In the presentation. Learn more in the latest ‘Focus on Potato’ presentation “Phosphorous Acid and its use in Potato Post-Harvest Situations,”

In a study published this summer, scientists of the Washington State University found that potato virus S (PVS) breaks down late blight resistance in potato.

While weed resistance issues have been grabbing many headlines over the past few years, fungicide resistance has become an increasingly important issue this growing season—and likely for future growing seasons if sound resistance management practices are not adopted.

Continued wet August weather has caused late blight infections to proliferate throughout Eastern Idaho, according to University of Idaho Extension potato pathologist Phil Nolte.

The National Potato Council (NPC) is pleased to award Washington Luis da Silva, a plant pathology Ph.D. student at Cornell University in Ithaca, N.Y., its 2014-15 Academic Scholarship.

Late blight, a fungal-like pathogen that affects potato and tomato crops, has been confirmed on Long Island for the sixth consecutive year.

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.

In this USDA research on soybean crops, researchers find a link between minimum winter temperature and pesticide use.

Whether you call them glassy ends, translucent ends, dark ends, jelly ends, or something even less flattering, sugar ends are a significant issue.

A University of Florida scientist has pinpointed Mexico as the origin of the pathogen that caused the 1840s Irish Potato Famine, a finding that may help researchers solve the $6 billion-a-year disease that continues to evolve and torment potato and tomato growers around the world.

Hairy nightshade and potato tuberworm (or potato tuber moth) are two economically important inhibitors to potato production. Two of the latest ‘Focus on Potato’ webcasts focus on these economically important potato pests.