News on Potato Defects and Diseases

Aardappelen oogsten in droge grond (Courtesy: @Jos_Raedts)
October 27, 2016
Door late aardappeloogst is de publicate van de NEPG oogstverwachting uitgesteld tot November
Als gevolg van de late aardappeloogst in alle NEPG landen (BE, DE, FR, NL, UK) is besloten om de bekend making van de officiële NEPG oogstverwachting cijfers uit te stellen naar de derde week november.
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 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
AHDB Potatoes' Seed Industry Event focuses on the issues that matter for those involved in seed potatoes and right down the supply chain.
October 11, 2016
Blackleg and Brexit under the Spotlight at AHDB Potatoes Seed Industry Event
AHDB Potatoes will use this year’s Seed Industry Event on 3 November to review the industry’s current approach to controlling blackleg. The biennial conference, held this year in St Andrews, will also provide growers with an insight into the potential impact of Brexit, and scope out the potato market, both at home and abroad.
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.
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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Hundreds of thousands of potato beetles made life miserable for residents of the Austrian village of Hüttendorf for a week
September 10, 2016
Potato Beetles invade Austrian village
Hundreds of thousands of potato beetles which made life miserable for residents of the small village of Hüttendorf in Lower Austria for a week have vanished as quickly as they appeared.
Resumenes del último congreso de la ALAP
September 07, 2016
Resumenes del último congreso de la ALAP
Con el lema “Sabor y nutrición en un solo lugar”, la Asociación Latinoamericana de la Papa (ALAP) realizaron del 22 al 26 de agosto de 2016, el XXVII congreso bianual ALAP, encuentro que reunió connotados investigadores de diversas partes del mundo, productores, empresarios, extensionistas, estudiantes y otros interesados en conocer más sobre la producción de papa.
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.
Adult Potato Psyllid (Bactericera (paratrioza) cockerelli) (Courtesy: Gary McDonald)
August 11, 2016
Potato Psyllid Alert for North Dakota
Potato psyllids have been reported in specific fields in western and central North Dakota. At this point populations are not widespread.
Participants at the 25th annual Texas Potato Breeding and Variety Development Program field day learned that the harvest is underway, that psyllids are threatening unharvested fields and that new varieties are showing lots of promise.
(Courtesy: Texas A&
August 01, 2016
Harvest, psyllids & new varieties the hot topics at Texas potato field day
Participants at the 25th annual Texas Potato Breeding and Variety Development Program field day learned that the harvest is underway, that psyllids are threatening unharvested fields and that new varieties are showing lots of promise.
México: Investigan control biológico de plagas mediante compuestos orgánicos volátiles emitidos por plantas
July 29, 2016
México: Investigan control biológico de plagas mediante compuestos orgánicos volátiles emitidos por plantas
El proyecto consiste en una investigación sobre la fisiología de la planta, involucrando tres niveles tróficos durante la interacción planta-insecto/plaga-depredador.
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Examples of the damage done to potato fields in North East North Dakota: (Top:) A once promising potato field stands under water. (Bottom left:) A hail devastated potato crop in Pembina County. (Bottom right:) A potato field claimed by rain and hail.
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July 27, 2016
Weather Continues to Devastate Potato Crops in Northeast North Dakota
The heart of "Potato Country" in northeast North Dakota was devastated by baseball size hail that lasted up to 35 minutes last Tuesday night.
La polilla guatemalteca entra en la provincia española de Asturias
July 22, 2016
La polilla guatemalteca entra en la provincia española de Asturias
Este pequeño lepidóptero ha llegado proveniente de Galicia, afectando a cultivos de los municipios de San Tirso de Abres y Vegadeo.
Late blight (Phytophthora infestans) on the bottom of a potato leaf (Courtesy: Howard F. Schwartz, Colorado State University)
July 19, 2016
Late blight detected in a Western Manitoba Potato Crop
Manitoba's first case of late blight for the year was found in a western Manitoba field over the weekend.
Potato Plant wilting due to Dickeya (Courtesy: Cornell University)
July 17, 2016
Dickeya Blackleg: New Potato Disease Causing Major Impact
Dickeya blackleg, often just called Dickeya, is a new disease in the United States. It was severe in 2015 at least partly reflecting hotter weather than previous 2 years when the pathogen likely was present and is developing again in 2016.
Plants infected with the original strain of PVY are difficult to see (pale center plant). However, the newer strains are virtually undetectable with the naked eye (Courtesy: Washington State University).
July 13, 2016
New Potato Virus Y strains very difficult to detect with the naked eye
Several newly evolved strains of the disease known as potato virus Y, or PVY, can render potatoes unmarketable and reduce crop yield. What’s worse is the new viruses are particularly difficult to detect with the naked eye.
Potato Aphids (Macrosiphum euphorbiae) alatae (insect form with wings) , apterae (wingless female form) and cast skins (Courtesy: Wikimedia)
July 06, 2016
AUSVEG: Wasp warfare with avid aphid-eating parasites can help prevent pesticide resistance
With pesticide resistance rising in species of aphids which feed on potatoes and spread viruses, one of the best control options for growers battling these pests may be found in nature, free of charge: parasitic wasps.

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