Diseases
Potato virus Y (PVY) affects both yield and the quality of the crop, making it one of the most dangerous diseases faced by commercial potato producers. Spread by aphids and through infected seed lots, PVY has been managed with varying levels of success by Canadian growers for many years, but…
Potato industry stakeholders from across the United States gathered in Bangor, Maine in November 2017 to deliberate on Dickeya, the aggressive disease that’s devastated thousands of potato acres in the U.S. since its first major outbreak in 2015.
As spring arrives, potato growers are concerned about Dickeya, and Eugenia Banks, the Ontario potato specialist, has some points of interest to share. Potato seed infected late in the season with Dickeya (new blackleg) usually does not show symptoms in the field before harvest nor in seed storages. This is because…
Syngenta Canada Inc. has announced Orondis Ultra fungicide is now available in a premix formulation for added convenience.
For the first time, evidence of the zebra chip pathogen has been found in potato fields in southern Alberta.An infected potato psyllid insect carries the Lso (Candidatus Liberibacter solanacearum) pathogen that can cause zebra chip disease in potato crops.Zebra chip has affected potato crops in the U.S., Mexico and New…
All the isolates of late blight -Phytophthora infestans tested were US-23 for 2017. No new late blight incidence has been reported in the last week, which has generally been dry, warm and windy. The 7-day DSV accumulation for late blight risk has been essentially minimal. Harvest has begun in many…
Alberta's potato industry is worth more than $1 billion to the province's economy. But it's threatened by a tiny bacterium that causes zebra chip disease, which has already affected crops in the United States, Mexico and New Zealand. This year, a Lethbridge scientist reports, it hasn't shown up in the province."We…
Late blight has been confirmed in Manitoba from Rural Municipality of Norfolk Treherne in South Central potato growing region in Manitoba. The region had heavy rains last week in the area. Leaf spot infections appear to be scattered close to the irrigation pivot. The infected leaf spots have sporulation and…
A virologist with Agriculture and Agri-Food Canada (AAFC), in collaboration with breeders, has developed a way to speed up marker-assisted selection in the effort to identify potato virus Y (PVY) resistant material. The method – known as high-resolution melting markers, or HRM markers – has been used in other breeding…
There’s no current technology to detect acrylamide precursors quickly and without destroying the spud, but a new technique developed by Lien Smeesters from the University of Brussels might help weed out potentially toxic potatoes before they even go to market. In Smeesters’ design, a laser uses infrared light to detect…
With planting season just around the corner, researchers at Agriculture and Agri-Food Canada are reminding home gardeners to take precautions to prevent the infection and spread of late blight. Planting clean and disease-resistant seeds is the best way to prevent the spread of late blight to other gardens and potato…
 Syngenta Canada Inc. has announced the launch of Aprovia Top fungicide, offering Canadian potato growers a new tool for foliar early blight control and brown spot suppression. Early blight, caused by the Alternaria solani fungus, is found in most potato growing regions. Foliar symptoms include small, brown, irregular or circular-shaped…
For potato growers around the world, common scab is a constant vexation. Causing millions of dollars in losses each year, common scab is difficult to control. Recent research, however, has identified options for suppressing the disease, if not getting rid of it all together. Some of the research centres on…
Researchers at the Texas A&M AgriLife Research plant pathology team have intentially infected potato plants with the bacterium that causes zebra chip in order to identify potato varieties with genetic resistance. | READ MORE
Dickeya has been present for several years in Europe and has now been found in Ontario and several American states. The general manager of the PEI Potato Board said there is no sign of the disease in PEI and industry representatives are working hard to keep it that way. | READ…
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