Phytophthora infestans Archives - Manitoba Co-operator

Late blight infections in tomatoes can spread to potatoes. Late blight can affect tomato leaves, fruit and stems. On leaves spots are not restricted by leaf veins and often have a lighter-green edge.

Late blight hits Manitoba late, but still a concern

Gardeners can take action now to ensure they aren’t sources of infection next year

By Allan Dawson September 22, 2015

With late blight infections on the rise in Manitoba potato fields this fall, home gardeners should be vigilant so as not to be a source of infection next year, says Vikram Bisht, Manitoba Agriculture, Foods and Rural Development’s potato and horticultural crops plant pathologist. The first case of late blight this season was confirmed Sept.

Crops, Local news

Manitoba’s first late blight infection found in potato field near Carberry

Home gardeners need to be vigilant now to avoid spreading the fungal disease next year

By Allan Dawson September 15, 2015

Late blight, the fungal disease responsible for the Irish potato famine, has been found in the Carberry area for the first time this year. Commercial potato growers should apply fungicides to protect uninfected fields and treat infected ones, but it’s home gardeners Vikram Bisht wants to get a warning to. Potatoes infected with late blight

Crops

Phosphorus acid a strong option for disease control in potatoes

Both foliar or post-harvest application are options, depending on circumstances

By Julienne Isaacs May 6, 2015

Phosphorus acid was a much-discussed topic at Manitoba Potato Production Days in Brandon this year, and for good reason. A variety of phosphorus acid treatments, registered in Canada under the labels Phostrol, Rampart and Confine, are useful additions to growers’ tool boxes for disease control. Susan Ainsworth, a potato specialist for Syngenta in Manitoba, offered

Crops, News

New fungicide for potatoes

By Manitoba Co-operator Staff June 30, 2012

Engage Agro has received registration for its fungicide Phostrol for use on potatoes and other horticultural crops, the latest Manitoba Potato News says. Phostrol is an extremely systemic and highly unique phosphite fungicide that has both a direct and indirect effect on harmful oomycete diseases on a broad range of crops. Phostrol is labelled for

Crops, News

Emergency registration for Confine

June 16, 2012

The Pest Management Regulatory Agency (PMRA) has approved the request by a number of provinces, including Manitoba, for an amendment to the registration of Confine, a fungicide for the suppression of late blight and pink rot in potatoes, the latest potato bulletin from Manitoba Agriculture, Food and Rural Initiatives states. The emergency registration is in

News

New late blight fungicide

By Manitoba Co-operator Staff June 5, 2012

Engage Agro Corp. has announced that its Torrent fungicide has been approved for use in Canada. The product is approved for the control of late blight in potatoes, downey mildew in cucurbits and cavity spot in carrots. Additional crops and pests may be added in the future. Torrent is active in all stages of the

Crops, News

Shifting sands: Late blight populations changing quickly

By Gord Gilmour March 14, 2012

The symptoms of late blight don’t vary much from strain to strain, but recent evidence suggests that these strains are changing more quickly than ever before, setting growers up for an even bigger control challenges. Rick Peters, a Charlottetown, P.E.I.-based research scientist with Agriculture and Agri-Food Canada (AAFC), told growers at this winter’s Manitoba Potato

News

Late Blight Found In Tomatoes

By Allan Dawson September 1, 2011

The first case of late blight, the bane of Manitoba tomato growers last year, was confirmed last week on garden tomatoes in Ashern. Five cases of the fungal disease responsible for the Irish Potato Famine in the 1840s, have been detected in potatoes, including in a “sentinel” plot at the Canada-Manitoba Crop Diversification Centre near

Crops

Another Case Of Late Blight Has Been Confirmed

August 25, 2011

Late blight was confirmed in a field of potatoes near Carman Aug. 18 – the fourth infection detected in Manitoba this summer, said Vikram Bisht, a plant pathologist with Manitoba Agriculture, Food and Rural Initiatives (MAFRI). Last year late blight – the fungal disease behind the Irish potato famine of the 1840s – was much

Crops, Oilseeds

Be On Lookout For Bertha Armyworm

August 11, 2011

The Swan River area is seeing some high levels of armyworm larvae, provincial entomologist John Gavloski says in the Aug. 2 weekly disease and insect update. Some higher levels were also reported from the Beausejour area, but most were over an inch long and it appeared the population was starting to turn to pupae. “Some

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Tag Archives Phytophthora infestans

Late blight hits Manitoba late, but still a concern

Manitoba’s first late blight infection found in potato field near Carberry

Phosphorus acid a strong option for disease control in potatoes

New fungicide for potatoes

Emergency registration for Confine

New late blight fungicide

Shifting sands: Late blight populations changing quickly

Late Blight Found In Tomatoes

Another Case Of Late Blight Has Been Confirmed

Be On Lookout For Bertha Armyworm

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