News on Potato Defects and Diseases from the United States

Zebra chip, a disease that annually costs Southwest U.S. potato growers millions of dollars in crop loss, has been found in Washington and Oregon. A USDA scientist and an Oregon State University plant pathologist confirmed zebra chip in tuber samples ...

Late blight has shown up in the fields of two potato producers, in Palmer and Delta Junction. Alaska. The University of Alaska Fairbanks Cooperative Extension Service is working with major potato producers to help prevent the spread.

A new USDA-funded consortium will provide nationwide tracking of late blight infections of potato and tomato.  A web site currently under development will allow users to report where late blight has been found, and to sign up for automatic notifications by email or text message when late blight is found nearby.

Given that world potato production is about 320 million tons per year (20 million tons per year in the United States) and world tomato production is about 120 million tons per year (13 million tons per year in the U.S.), late blight is a major problem worldwide even today.

"Focus on Potato"of the Plant Management Network has published a new webcast:Early Blight: A Global Management Issue on PotatoesBy Walter R. Stevenson, Ph.D.Professor EmeritusUniversity of WisconsinMadison, Wisconsin

The Washington Potato Commission approved about 742-thousand dollars in research projects for the upcoming growing season at its quarterly meeting this month.

Dynasty, available exclusively as a partner with CruiserMaxx® Potato insecticide/fungicide seed treatment, is a broad-spectrum and highly systemic fungicide that offers improved disease protection against the major classes of fungal pathogens.

A potato virus that has been around for years is mutating and that’s got both researchers and industry leaders worried.

Un virus de la papa que ha existido desde hace años está mutando y tiene preocupados tanto a investigadores como a líderes de la industria. Los productores han crecido viendo los síntomas que causa el virus Y de la papa, más conocido como PVY. La enfe...

Bayer CropScience representatives are gathering with potato growers during the National Potato Expo (January 5-7) to discuss the features and benefits of Movento® insecticide.

'Focus on Potato' has published its latest webcast, titled: “Black Dot Root Rot of Potato'

'Focus on Potato' has published a new webcast: on 'Corky Ringspot Disease in Potato'

La investigación realizada por el profesor Manuel Ospina Giraldo sobre el organismo que causó la hambruna de la papa en Irlanda, será financiada por el Departamento de Agricultura de los Estados Unidos (USDA), a través de una subvención de US$ 999.900 ...

Research by Professor Manuel Ospina-Giraldo on Phytophthora Infestans - the organism that caused the Irish Potato Famine - is being funded as part of a $999,900 “Education in Genomics-Based Microbial Forensics” grant from the United States Department of Agriculture.

'Focus on Potato' has published a new webcast:
'Aphid Management in Potatoes'

Storage conditions can be ripe for diseases to develop and devastate potato crops, leading many universities to seek ways to control or prevent diseases before they become a problem. At the University of Maine (UM) a fungicide testing program looks at...

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...

"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