Diseases
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…
Scientists at the Conneticut Agricultural Experiment Station are using nanoparticle technology to apply copper to the shoots of plants. Based on preliminary findings in the research, these nanoparticles are better at helping deliver the necessary nutrients to the plants and keep them healthy despite the presence of Fusarium in the…
Sept. 29, 2016, Ontario – The potato IPM training module, an educational tool with information for the common insect pests, diseases, viruses and disorders of potatoes in Ontario, is now available online. | READ MORE
Sept. 8, 2016 - Although harvest of the late maturing crop has not started yet, it is never too early to start thinking about disease management in 2017. Two fungicides to keep in mind in 2017 are QUASH for early blight and Revus as a seed treatment for late blight.
Sept. 8, 2016 - According to Manitoba Agriculture, aphid counts in weeks 9 increased slightly in most locations. However, one western field had no aphid trapped. While another field in the same region continued to have massive numbers; with significantly higher potato aphids compared to last week. Most of the…
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