News on Potato Defects and Diseases

Agrico presented the potato varieties Twister and Twinner also at the Bio-beurs. Their natural resistance to the major potato disease Phytophthora makes them very suitable for organic cultivation.
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.
The Potato Conference in Zhaotong, China was held earlier this week on October 28 and 29, 2018. The World Potato Congress delegation made a significant contribution.
November 01, 2018
World Potato Congress participates at the Potato Conference in Zhaotang, China
The Potato Conference in Zhaotong, China was held earlier this week on October 28 and 29, 2018. The World Potato Congress delegation made a significant contribution.
Farmland in the Lahaul and Spiti valley (Courtesy: Jai Kumar / Tribune India)
October 29, 2018
Indian government limits movement of seed potatoes to contain Potato Cyst Nematodes
In an effort to limit the spread of the Potato Cyst Nematode, the government of India has prohibited the movement of seed potatoes from Himachal, Tamil Nadu, Uttarakhand and Jammu Kashmir to other states
Roots affected by Potato cyst Nematodes (Courtesy: Jonathan D. Eisenback, Virginia Polytechnic Institute and State University)
October 29, 2018
Potato Cyst Nematode (PCN) infested area in Idaho expanded by 87 acres
Effective October 10, the Animal and Plant Health Inspection Service (APHIS) added an 87-acre field to the pale cyst nematode (PCN) infested area in Bingham County, Idaho.
Plan emergente frente a nueva plaga de la papa en Ecuador
October 26, 2018
Plan emergente frente a nueva plaga de la papa en Ecuador
La punta morada se transmite a la plantas por medio de un insecto. Es una enfermedad de difícil control y detección y causa pérdidas significativas de rendimiento y calidad a nivel mundial.
Bill Watts has joined AHDB as Arable Knowledge Exchange Manager (Potatoes) for the West Midlands, South West and Wales.
October 18, 2018
Bill Watts joins AHDB as Knowledge Exchange Manager focused on Potatoes
Bill Watts has joined AHDB as Arable Knowledge Exchange Manager (Potatoes) for the West Midlands, South West and Wales.
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Tuber symptoms of the Potato Mop Top Virus (PMTV)
October 14, 2018
Number of NZ potato farms affected by Potato mop-top virus increases by 18
The scale of the Potato Mop-Top Virus problem on New Zealand South Island potato farms has widened. Eighteen Canterbury farms are now on the suspect list, after the virus was first confirmed on two properties last month.
Investigadores analizan situación de la marchitez bacteriana
October 12, 2018
Investigadores analizan situación de la marchitez bacteriana
Ocurrió en la ciudad chilena de Paillaco, durante un seminario organizado por el Ministerio de Agricultura y el INIA. El objetivo fue el de estudiar la situación actual de la enfermedad, su riesgo y el manejo preventivo.
An aerial view of a tobacco field in North Carolina after hurricane Florence. Any sweet potatoes that have been submerged for days will not be harvested.
September 23, 2018
Fate North Carolina Sweet Potato Crop after Hurricane Florence still uncertain
The problem for North Carolina’s sweet potato farmers is knowing whether the drenching rains unleashed by hurricane Florence will have the same effect as being inundated by a flooded pond or creek. Some sweet potato fields received as much as 30 inches.
Observed symptom Potato mop-top virus described by Inra (Ephytia): Bright yellow arcs or rings on the bottom potato leaves of some cultivars infected with PMTV
September 23, 2018
First time detection of Potato Mop-Top Virus (MPTV) in New Zealand
Biosecurity New Zealand is working with Potatoes New Zealand to respond to a detection of Potato mop-top virus (PMTV) in potato tubers in Canterbury. Though common around the world, it is the first time the virus has been found in New Zealand.
Potato harvest in Sinaloa, Mexico
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.
Polilla Guatemalteca (Tecia solanivora)
September 16, 2018
Desarrollan bioplaguicida que ataca la polilla guatemalteca
Es un virus que las larvas de la polilla adquieren al alimentarse de la papa tratada. Para conocer mas sobre el bioplaguicida, escuche la entrevista que Caracol Radio de Colombia realizó a la ingeniera Paola Cuartas de Agrosavia.
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Potato Plants affected by late blight (Phytophthora infestans)
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.
Not only will the potato production in North-Western Europe be much lower than average, quality issues will also be a main challenge. Shown in the picture above: secondary growth / heat sprouts (Courtesy: Eurgenia Banks)
August 14, 2018
Potato growers propose pan-European approach to resolve contract issues with processors due to extreme weather
The North-Western European Potato Growers (NEPG) conclude that the potato production this year in North-Western Europe will be much lower than average and that quality issues will be a main challenge.
It's not just the weather that makes this year's potato crop in Washington promising. Chris Voigt also credited the great care and detailed management by the Washington potato growers for the expected high yields and good quality(Courtesy: Washington St
August 13, 2018
Washington potato growers struggling to keep up with demand
The Washington State Potato Commission, headquartered in Moses Lake, Washington, has been pleasantly surprised by the weather and its impact on this year’s potato crop in the state.
Lakesh Sharma, assistant professor with the University of Maine Cooperative Extension and University of Maine Presque Isle, talks about trials using beneficial mycorrhizae fungi in potatoes at the Aroostook Research Farm in Presque Isle on August 8.(Cou
August 12, 2018
Range of potato experiments underway at Maine Research Farm (Aroostook)
Farmers, researchers and members of the public gathered at the University of Maine’s Aroostook Research Farm in Presque Isle last Wednesday to learn about the latest in potato research.
Potato Field affected by drought in the Netherlands, where the situation is very comparable to the situation in Belgium
(Courtesy: Arjen de Vos)
August 08, 2018
Continuing drought and extreme heat a disaster for the potato harvest and processors
The extreme heat and drought is a disaster for the upcoming potato harvest. And for processors too: in Belgium, potato chips manufacturer Roger&Roger (Croky) temporarily halts production of some its flavours to manage the lack of potato supply.
Potato field in Pennsylvania naturally infected with late blight, September 2014. Only surviving plants are Innate™ generation two (Courtesy: J.R. Simplot)
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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