News on Potato Defects and Diseases from Northern America

September 23, 2010

Sarna común: una posible solución en el suelo

Los productores de papa han estado esperando que los científicos encuentren un camino para combatir la sarna común de la papa. Los investigadores han encontrado un defensor en el suelo. Traducción al castellano del Ing. Agr. Carlos A. Del Caso del artí...

September 02, 2010

New PMN webcast: The Changing face of Potato Virus Y

"Focus on Potato"of the Plant Management Network has published a new webscast: The Changing Face of Potato Virus Yby Dr. Stewart Gray of USDA-ARS

September 01, 2010

El CIP acaba de publicar en ingles un manual técnico sobre tizón tardío

El desarrollo de nuevas tecnologías ha permitido a los especialistas un mejor entendimiento de la biología del Phytophthora infestans (Mont.) de Bary. Sin embargo, mucha de esta información se presenta de forma fragmentada o en publicaciones que a vece...

August 18, 2010

Manitoba started processing new crop potatoes

In Manitoba, harvest of processing potatoes is underway.

August 09, 2010

Potato Psyllids found in North Dakota

The North Dakota State University (NDSU) Blight Line reports the finding of a potato insect pest new to North Dakota, the potato psyllid.

July 12, 2010

Evolución del brote de tizón tardío en Canadá

Los productores de papa de la Provincia de Manitoba están considerando cambiar a un ciclo más corto de pulverización de fungicidas si el tizón tardío continúa apareciendo en los campos de cultivo de la región. Vikram Bisht, patólogo vegetal de la Inic...

July 12, 2010

Late blight developments Canada

Manitoba Potato growers may consider switching to a shorter fungicide spray cycle as late blight continues to show up in fields throughout the potato growing regions of the province.Vikram Bisht, plant pathologist with Manitoba Agriculture, Food and Ru...

July 08, 2010

Othello welcomes potato growers and scientists

Potato growers and scientists from Washington, Oregon and Idaho congregated at Washington State University’s Othello Research facility at Cox and Booker roads during Potato Field Day June 24 to exchange pertinent facts about pest control and water mana...

July 08, 2010

'Focus on Potato' offers webcasts and science backed information for crop protection

The Plant Management Network (PMN), a nonprofit publisher of applied agricultural and horticultural information, announces the launch of Focus on Potato, a resource that features webcasts and other science-backed information tools that will help potat...

July 08, 2010

Emisiones en Internet sobre protección de cultivos

La Red de Manejo de Cultivos (PMN, por sus siglas en ingles), una editorial sin fines de lucro con información agrícola y hortícola, anuncia el lanzamiento de "Focus on Potato", un recurso en ingles con emisiones por Internet y otras herramie...

July 07, 2010

Late blight found in Walsh Country, North Dakota

Despite hot dry weather, Late Blight was found in a field in northern Walsh County in northeast North Dakota late last week.This is in addition to finds in Dickey County in southeast North Dakota and in the Carberry and Carman areas of southern Manitob...

June 30, 2010

Late Blight shows up in Washington

Potato late blight has been found and confirmed in the south Columbia Basin and Washington State University plant pathologist Dennis Johnson says more confirmations of the disease are expected this week. He says the disease was found in two locations. ...

ARS researchers Dennis Halterman and Shelley Jansky

June 16, 2010

ARS: Fighting Potato Diseases by Enhancing Germplasm

Wild potato germplasm that offers resistance to some major potato diseases has been identified by Agricultural Research Service (ARS) scientists.

June 16, 2010

Germoplasma de papa silvestre contiene una clave a la resistencia a enfermedades

Científicos del Servició de Investigación Agrícola (ARS) han identificado germoplasma de una especie silvestre de papa que ofrece resistencia a algunas enfermedades principales de la papa.

June 15, 2010

Late blight threatens Manitoba potato crop

A fungus that could seriously damage Manitoba's multimillion-dollar commercial potato industry has been spotted at commercial nurseries, Manitoba Agriculture says. The provincial agency has issued a warning to residential gardeners after "late b...

Tecia Solanivora (Guatemalan potato moth larva) courtesy André Kessler

May 25, 2010

Research: Moth larvae spit boosts potato yield

When a major South American pest infests potato tubers, the plant produces bigger spuds, reports a study by Cornell, University of Goettingen and National University of Colombia researchers.The secret is in the spit, write the researchers online in the...

Late blight (Phytophthora Infestans) on a potato leaf

May 20, 2010

Late blight hotlines

Worldwide, late blight is rated the worst of potato diseases. Intermittently since the 1990s, spores have turned up in commercial fields of Idaho, Washington, California and Oregon. When the spore is present it reproduces like a wildfire in cool, mois...

May 14, 2010

ARS and University of California attack zebra chip disease

Developing a chemical attractant to monitor and manage the potato psyllid is the goal of a new cooperative agreement signed in March between the Agricultural Research Service (ARS) and the University of California (UC) at Riverside.