News on Phytophthora

PEI Potato Farms Using New Decision Support Tools to Improve Use of Crop Protectants
February 14, 2020

PEI Potato Farms Using New Decision Support Tools to Improve Use of Crop Protectants

A growing number of Prince Edward Island potato farms are taking advantage of new technology to improve their use of crop protectants, including fungicides used to prevent late blight.
Chile: Mantienen Alerta Roja por tizón tardío que afecta cultivos de papas en provincia de Osorno
February 03, 2020

Chile: Mantienen Alerta Roja por Tizón Tardío que afecta cultivos de papas en provincia de Osorno

Se mantiene la Alerta Roja en algunos sectores de la provincia de Osorno, Chile, debido a la presencia de tizón tardío que afecta a cultivos de papas. Por esto, agricultores de la zona y desde la Unión Comunal de Juntas de Vecinos Rurales acusan poca ...
Gowan acquires late blight, rhizoctonia protection agents from Bayer
January 17, 2020

Gowan acquires late blight, rhizoctonia protection agents from Bayer

Gowan Crop Protection Limited, an affiliate of Gowan Co. LLC., has entered into agreements with Bayer AG to acquire rights to the active ingredients fenamidone and pencycuron.
Potato infected with late blight (Courtesy: ARS / Scott Bauer)
November 08, 2019

Phytophthora infestans, causing late blight in potatoes, has a virus accomplice

A research team has identified a virus infecting Phytophthora infestans, the pathogen causing late blight in potatoes and tomatoes, that appears to increase the pathogen's ability to cause the disease.
Germicopa: 'Give us yellow-flesh French-fry varieties with broad nematode resistance.'
October 29, 2019

Germicopa: 'Give us yellow-flesh French-fry varieties with broad nematode resistance.'

Harry van de Vijver, Germicopa, Quimper (F): 'Give us yellow-fleshed French-fry varieties with broad nematode resistance.'
Caithness Potatoes Nederland: 'New French-fry varieties must excel in at least one characteristic, but in fact have two good ones.
October 28, 2019

Caithness Potatoes Nederland: 'New French-fry varieties must excel in at least one characteristic, but in fact have two good ones.'

Jan-Eric Geersing, Caithness Potatoes Nederland, Emmeloord: 'New French-fry varieties must excel in at least one characteristic, but in fact have two good ones.
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Researchers using advanced imaging to detect blight in potatoes
October 14, 2019

Researchers using advanced imaging to detect blight in potatoes

Researchers in the WARF Accelerator program are using advanced imaging technology to detect late blight in potatoes, which famously led to the Irish potato famine in the mid-nineteenth century.
Late blight detected in central Wisconsin, southern Washington
August 13, 2019

Late blight detected in central Wisconsin, southern Washington

Late blight has been confirmed in a potato field in central Wisconsin.
Four 'resistancy' genes in current commercial potato varieties already defeated by Phytophthora Infestans
July 31, 2019

Four late blight 'resistancy' genes in current commercial potato varieties already defeated by Phytophthora Infestans

Recent research at the James Hutton Institute suggests that limited genetic differences in potato lineages has left British and American spuds vulnerable to late blight, the disease that caused the Irish potato famine.
Disease resistant potato seeds launched in Dedza
July 09, 2019

Disease resistant potato seeds launched in Dedza

In an effort to combat diseases which have been hampering potato yields for the past two years in Dedza, International Potato Centre (CIP) recently handed over disease resistant Irish potato seeds to ten farmers in the district.
Cornell University improves global access to potato breeding material
June 11, 2019

Cornell University improves global access to potato breeding material

Plant breeders and geneticists of Cornell University have released more than 50 potato varieties since 1908. Now they are expanding their efforts to make more wild potato seeds available to potato breeders around the world.
The potato late blight pathogen. (Courtesy: Jens Gronbech Hasen / EuroBlight)
May 07, 2019

Potato Blight Trends in Europe: EuroBlight 2018 Results

EuroBlight is continuously examining the ongoing evolution of the European population of the potato late blight pathogen and now reports on the 2018 results. Approximately 1000 samples were genotyped from 22 countries.
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Better and stronger potatoes using hybrid breeding
December 18, 2018

Better and stronger potatoes using hybrid breeding

The potato breeding company Solynta in The Netherlands has successfully produced a hybrid breeding program for potatoes which will allow the rapid selection and turnover of favourable traits, traits which could help feed millions of people worldwide.
Agrico warns: 'Considerably less seed potatoes available for export'
November 13, 2018

Agrico warns: 'Considerably less seed potatoes available for export'

During the annual potato variety show at Agrico the topic of discussion was not limited to unique varieties on display. The impact of the excessive heat and drought this season on the seed potato market was also a hot topic.
Potato variety presentations in the Netherlands: Agrico highlights natural resistance to Phytophthora.
November 06, 2018

Potato variety presentations in the Netherlands: Agrico highlights natural resistance to Phytophthora

As part of the potato variety presentations in the Netherlands later this week, Agrico highlights its late blight resistant varieties in a Ukraine themed show.
New Mexican potato variety Citlali shows resistance to late blight and zebra chip disease
September 19, 2018

New Mexican potato variety Citlali shows resistance to late blight and zebra chip disease

In Mexico, researchers of the National Forestry, Agriculture, and Livestock Research Institute (INIFAP), part of the Mexican Ministry of agriculture (SAGARPA), have developed a new potato variety, Citlali, with improved tolerance to diseases.
Computer models provide new insights for sustainable control of potato late blight
September 05, 2018

Computer models provide new insights for sustainable control of potato late blight

Wageningen University & Research uses computer models to develop sustainable management strategies in the control of potato late blight, caused by Phytophthora infestans.
ARS scientists streamline process to introduce multiple genes - as is required to make potatoes resistant to late blight
August 06, 2018

ARS scientists streamline process to introduce multiple genes - as is required to make potatoes resistant to late blight

Agricultural Research Service (ARS) scientists in Albany, California, have found a way to streamline the process that scientists use to insert multiple genes into a crop plant. Simplot is planning to use it to introduce multiple genes into potatoes to make them resistant to late blight

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