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Dennis Lange at the 2022 Crop Diagnostics School.
Crops, Pulses

Scout early for blight in peas

High moisture makes diligence even more important this season

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Manitoba agronomists recommend that farmers scout now for mycosphaerella blight in field pea crops. High moisture conditions this year are likely to result in more disease pressure. “The scouting time would be right around early flowering and some fields have started to flower already,” said Dennis Lange, provincial pulse specialist. According to Manitoba Pulse and
short soybeans - Allan Dawson
Crops, Local news

Alfalfa weevil still at high levels, root rot in soybeans reported

Manitoba Insect & Disease Update for June 28

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Alfalfa weevil continues to be reported at high levels in some alfalfa fields. Cereal leaf beetle and thrips are noticeable in some fields of small grain cereals, but at below economical levels. Initial tests of levels of parasitism of cereal leaf beetle larvae show quite high levels in the Central region, with samples from other regions soon to be tested. Thanks to
Late blight is just one seed-borne disease that makes planting clean seed potato pieces important.

Crops

Plant clean seed potatoes

Selecting and planting disease-free potato seed pieces is the crucial first step to assuring a successful potato crop

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Starting the season with disease-free potato seed stock is the first step in establishing a good stand that will maximize yield potential. There are several diseases growers should be concerned with when selecting seed potatoes that will produce vigorous uniform stands, especially potato leafroll virus, potato virus Y, also known as “common mosaic,” and late
It’s important that growers recognize symptoms of late blight, which can appear on the plant’s leaves, stems and fruits, says a provincial extension pathologist.
Crops

Get an early start on preventing late blight

There are many steps we can take now — including starting tomato seedlings 
from seed from reputable suppliers — that can help ward off another infection in 2017

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Commercial potato growers, market gardeners and home gardeners were hit hard by late blight last year, but there are steps to take to avoid a repeat in 2017, say Manitoba Agriculture staff. The key is managing for the fungal disease before it becomes a serious problem. The precautions to take range from choosing tomato varieties
Halo blight on a bean leaf. Since halo blight and common blight are bacterial diseases, they can be controlled with streptomycin, but the same antibiotic is critical for controlling human disease.
Crops, Oilseeds

Antibiotic bean coatings under scrutiny

With growing concerns over antibiotic resistance in mind, 
bean blights will have to be tackled with blight-resistant varieties


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For nearly three decades Health Canada has been threatening to end the importation of streptomycin sulphate-coated bean seeds. Now it is one step closer — sort of. “Health Canada’s Pest Management Regulatory Agency (PMRA) has not banned the import of streptomycin-treated bean seeds,” the federal department said in an emailed statement. “It should be noted,
Manitoba gardeners need to be watching for late blight in their tomatoes and potatoes. These tomatoes have late blight and should be destroyed to protect Manitoba’s 64,500 acres of commercial potatoes.
Crops, Local news

Manitoba potato growers, gardeners need to scout for late blight

Home gardens can be a source of infection for the fungal disease that can spread to commercial potato fields

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Manitoba gardeners need to scout for late blight in their tomatoes and potatoes — not just to protect themselves, but the provinces’s 64,500 acres of commercial potato production. Late blight — the same fungal disease responsible for the Irish potato famine in the late 1840s — was detected July 16 in a potato field near
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.
Crops, Local news

Late blight hits Manitoba late, but still a concern

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

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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.
late blight on tomato plant
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

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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
Pupae and larva of redbacked cutworm
Crops, Local news

Manitoba crop insect and disease update – June 9, 2015

Flea beetles in canola and cutworms are the insects of most concern

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Summary Flea beetles in canola and cutworms continue to be the insects of greatest concern. Insecticide applications and some reseeding have occurred because of feeding by these insects. Monitor emerging crops for seedling disease. So far populations of disease vectors have been low. Aphid vectors of barley yellow dwarf have not been seen or reported, and only small populations of
News

Late Blight Found In Tomatoes

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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

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