News on Potato Defects and Diseases from the Americas

Pale Cyst Nematode (PCN) Eradication Progress Summary (Idaho) as of March 2017
April 22, 2017
Efforts to eradicate damaging nematodes in 27 infected Idaho potato fields progressing well
Progress is being made eradicating the microscopic potato cyst nematodes that have been threatening Idaho’s $900 million potato industry the last decade, according to the latest update by USDA-APHIS.
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The National Potato Council (NPC) has sent a letter to President Trump with suggestions how the NAFTA agreement can be improved to benefit the potato trade.
April 17, 2017
US Potato Growers offer Trump suggestions to improve NAFTA
The National Potato Council (NPC) has sent a letter to President Trump with suggestions how the NAFTA agreement can be improved to benefit the potato trade.
From the archive
Red Potatoes affected by Powdery Scab.
April 11, 2017
New Webcast helps Potato Growers avoid devastating Powdery Scab Outbreaks
Powdery scab is a potato disease that is difficult to manage and under certain environmental conditions powdery scab can be potentially devastating to susceptible potato varieties.
From the archive
In potato plants with milder symptoms of Dickeya, leaves are curled. (Courtesy: Amy O. Charkowski)
April 11, 2017
Guarding against Dickeya: testing your seed potatoes
With clean seed potatoes recognized as the best defense against this new blackleg-causing pathogen, the demand for Dickeya testing is growing fast.
From the archive
Dr. Ada Szczepaniec discusses her greenhouse study on potato psyllid resistance to neonicotinoid insecticides.
April 02, 2017
Neonicotinoid insecticides losing efficiency in potato psyllid control
The potato industry may be losing a mainstay in the battle against psyllids, according to a recent Texas A&M AgriLife Research study.
From the archive
Gary Secor, consultor internacional y reconocido experto en el cultivo de la papa.
March 28, 2017
Experto internacional en sanidad de papas entrega su visión sobre el cultivo en Chile
Gary Secor, consultor internacional y reconocido experto en el cultivo de la papa, se presentó recientemente en el marco del PDT Papas apoyado por CORFO en la Región de Los Lagos, y ejecutado por el Consorcio Papa Chile.
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Approval of three second generation Innate potato varieties by the US Environmental Protection Agency and the Food and Drug Administration means Simplot is free to plant the potatoes this spring and sell them in the fall (Courtesy: Simplot).
March 20, 2017
US government approved 3 more Simplot GMO potato types for cultivation and sale
The US federal government has given the final OK to three more types of potatoes genetically engineered by Boise’s J.R. Simplot Co. to resist Phytophthora - the pathogen that caused the Irish potato famine.
From the archive
Detectan en Chile nuevos focos de nemátodos en cultivos de papas
March 17, 2017
Detectan en Chile nuevos focos de nemátodos en cultivos de papas
Durante acciones de vigilancia sanitaria agrícola de rutina, el Servicio Agrícola y Ganadero – SAG – detectó nuevos focos de NEMÁTODOS en siembras de papas ubicadas en la Península de Rilán, comuna de Castro.
From the archive
Manchas necróticas de color marrón oscuras en el haz de las hojas (Foto: W. Pérez)
March 05, 2017
Como prevenir, controlar y eliminar el tizón tardío de la papa
Agronoticias entrevista al Ing. Agr. M.Sc. Willmer Pérez Barrera, investigador senior en manejo integrado de plagas del Centro Internacional de la Papa (CIP).
From the archive
La langosta voladora puede desplazarse 30 km por día y destruir el 100% de los cultivos que invade
February 23, 2017
México: Crean biopesticidas contra plagas que dañan cultivos de papa y maíz
Científicos de la Universidad Autónoma de Campeche (UACAM) desarrollaron nuevas sustancias de origen biológico que controlan y eliminan plagas, como la langosta voladora, el psílido de la papa y el jitomate.
From the archive
Soil fumigation in Wicklow, New Brunswick. The field is fumigated with chloropicrin in the fall of the 2015, as part of a trial McCain Foods is conducting with its processing potato growers on both sides of the border. (Courtesy: Triest Ag Group)
February 07, 2017
Potato growers in Maine apply soil fumigation in a trial of McCain Foods
French Fry manufacturer McCain Foods has started trials examining soil fumigation with several of its potato growers in Maine (United States) and New Brunswick (Canada).
From the archive
Memorial in Dublin, Ireland commemorating the potato famine of the 1840's caused by Phytophthora infestans
January 04, 2017
Study Provides Evidence on Movement of Potato Famine Pathogen
North Carolina State University research delves into the movement and evolution of the pathogen that caused the Irish potato famine in the 1840's - Phytophthora infestans -, which set down roots in the United States before attacking Europe
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This webcast on Potato white mold - also known as Sclerotinia stem rot - is developed by Dennis A. Johnson, Ph.D. Professor, Extension Plant Pathologist, Washington State University (Courtesy: Washington State University)
December 06, 2016
Potato White Mold: how it spreads and how it can be managed
The Plant Management Network (PMN) has released a new presentation entitled 'Epidemiology and Management of Potato White Mold' to help growers, consultants and extension agents understand how white mold persists and spreads
From the archive
Cómo aumentar la producción de papa usando técnicas sencillas (o cómo manejar integralmente la sanidad de la semilla de papa)
November 14, 2016
Cómo aumentar la producción de papa usando técnicas sencillas (o cómo manejar integralmente la sanidad de la semilla de papa)
Esta nota analiza el problema de la degeneración de la semilla, detalla la estrategia propuesta del Programa del CGIAR de Raíces, Tubérculos y Banano, y describe cinco técnicas sencillas para mejorar la calidad de la semilla y aumentar la producción de papa.
From the archive
A bruised potato. The discoloration that occurs after tissue damage is largely caused by the activity of the enzyme polyphenoloxidase (PPO). In the Calyxt PPO_KO potato variety (one of the) genes coding for the PPO enzyme is knocked out, making the variet
October 26, 2016
USDA clears Calyxt potato modified to withstand bruising
A new potato variety that’s genetically modified to withstand bruising has been cleared for commercialization without undergoing USDA’s deregulatory process for biotech crops.
From the archive
From left to right: Michael Murphy ’17; Kathryn Boor, the Ronald P. Lynch Dean of the College of Agriculture and Life Sciences; State Sen. Thomas O’Mara, R, C-Big Flats; Melanie Wickham, executive director of Empire State Potato Growers and Walter DeJ
October 20, 2016
Cornell University receives state grant to upgrade Golden Nematode Lab
Cornell University receives $1.2 million of new state funding to upgrade the Federal Golden Nematode Lab
From the archive
Experto mundial en virología analiza situación de la papa en Chile (Entrevista)
October 10, 2016
Experto mundial en virología analiza situación de la papa en Chile (Entrevista)
El Dr. Luis Salazar visitó el país invitado por el Consorcio Papa Chile. Su visión de la situación actual de la papa frente a los virus que le atacan; las debilidades y fortalezas del rubro en Chile, y sus consejos, en esta entrevista exclusiva.
From the archive
The North-western European Potato Growers (NEPG) expect in the 5 covered countries (NL, B, FR, GB, DE) a lower production of potatoes (seed and potatoes.for starch production not included) compared to last season.
September 21, 2016
NEPG estimate for the 2016 potato harvest: More acres, less production and a lot of uncertainty
The North-western European Potato Growers (NEPG) expect in the 5 covered countries (NL, B, FR, GB, DE) a lower production of potatoes (seed and potatoes.for starch production not included) compared to last season.

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