News on Phytophthora from the Americas

The NDSU Potato Blightline for August 20th sponsored by Syngenta Crop Protection has been issued.

Home gardeners and commercial growers are alerted of the potential introduction of late blight this growing season, as it has been confirmed in Suffolk County.

The disease risk in potatoes has increased with the wet weather over the last few weeks. Luckily, so far no late blight hasbeen found in Manitoba.

Researchers cooperate to develop nutritious, high-yielding, and more disease-resistant potatoes for food-insecure indigenous communities in Colombia.

Late blight has not been reported in North Dakota, Minnesota or Manitoba. With the fair weather, late blight severity values are unchanged since Friday.

Late blight, the same disease that caused Ireland's potato famine in the 19th century, was confirmed in three Pennsylvania counties last week.

Much of Maine's seed potato supply for this year is infected with blight, and the state has asked the federal government for an emergency exemption to make an effective but expensive toxic seed treatment available to growers.

Con la v de victoria, presentaron el lunes las nuevas variedades de papas para Antioquia, con la ventaja de que vienen a prueba del tizón tardío o gota, que produce la destrucción o quemazón del follaje y la pudrición seca de la papa.

More than a decade has passed since Jim Tiede was among the growers caught up in a debacle over the first U.S. genetically modified potato variety. Even today, the American Falls, Idaho, farmer copes with the fallout of planting Monsanto's GM potato N...

Potato late blight, that same disease that caused the Irish Potato Famine, resurfaced in Alaska this fall. This wasn’t the first time the disease, widespread in the Lower 48 and worldwide, came to Alaska. Plant pathologist Jenifer McBeath suspects it...

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.

Presentación en PowerPoint de Andrés Arroyo Terán (Morera Ecuador S.A) en la I Expo Congreso Nacional de Papa, Expopapa (www.expopapa.com), realizada entre el 25-27 de noviembre de 2010 en la ciudad de Ibarra, Ecuador.

La Federacafé ha dicho que por la roya están afectadas más de 300.000 hectáreas, incluyendo algunas renovadas con variedades susceptibles. En papa el diagnóstico es semejante.

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.

They may be small but they pack a powerful punch. The wild relatives of the familiar potato varieties we find on our plates may yet hold the key to overcoming one of the crop’s most vicious enemies.