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Tag Archives Fungicides

Some bacteria found on corn silk are reduced, while some proliferate when exposed to fusarium.
News

Turns out plants can recruit bacteria to fight pathogens

Researchers find corn somehow attracts fusarium-fighting bacteria

By
Glacier FarmMedia – Researchers have found corn silks naturally contain diverse microbes, a finding that may point to a new strategy to help protect cobs from fungal infections. The normal function of silks is to facilitate seed formation, as sperm, when released from pollen, will travel up the silk to fertilize the egg. This also creates a
VIDEO: Timing fungicide decisions in canola and cereal crops
Crops, Farmit Manitoba

VIDEO: Timing fungicide decisions in canola and cereal crops

Crop Diagnostic School: A relatively dry growing season in 2019 didn't rule out fusarium issues

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At Crop Diagnostic School in July, David Kaminski, plant pathologist with Manitoba Agriculture, said 2019 was a challenge for producers when it came to timing fungicide applications. In this video, Kaminski discusses some of the conditions Manitoba producers faced this growing season in their canola and cereal crops and some of the factors at play
Darin Gibson, research agronomist and president of Gaia Consulting, is among those calling for potato producers to share how they use mancozeb as the government looks to ban it for potato use.
Crops, News

Mancozeb fight calls potato growers to share on-farm use

Spud growers urged to share info on mancozeb

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Mancozeb is on the regulatory chopping block. Now Manitoba potato producers are being urged to share how they use the chemical as their industry attempts to preserve it as an aerial fungicide, and they have just days to do it. Why it matters: Health Canada has proposed a ban on mancozeb for potatoes and other
Crops, Weather

Pearce: Multiple modes of action an emerging reality for fungicides

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As growers face more challenges from weeds, diseases and insects, many researchers, agronomists, advisers and farmers have shifted thinking from “control” of pests to “managing” them. Some of this trend is attributable to single-mode-of-action products and a reliance on one or two chemistries or technologies — but the adaptability of weed, disease and insect species
Soybean seedlings (right) exhibit the suddenly pinched and thin stem that might indicate disease, compared to healthy seedlings on the left.
Crops, Local news

Running down the risks of seedling disease

Sparse emergence might be more than a germination issue, Manitoba Agriculture warns

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Poor emergence is a common story for crops caught by lack of rain this year, but seedling disease may be another culprit. Manitoba Agriculture field crop pathologist Holly Derksen says seedling disease may mimic a poor stand, particularly if infection came in on the seed or if the germinated seed is exposed before it breaks
Western bumblebee. (Stephen Ausmus photo courtesy ARS/USDA)
Crops

U.S. study links bumblebee declines to fungicide use

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A new look at the environmental factors around declining bumblebee populations and ranges points to a less-than-usual suspect: fungicides. “Insecticides work; they kill insects. Fungicides have been largely overlooked because they are not targeted for insects, but fungicides may not be quite as benign — toward bumblebees — as we once thought,” Scott McArt, assistant
An early pasmo symptom is brown lesions on flax leaves.
Crops, Local news

Pasmo in flax every year, but severity varies

That makes decisions about applying a fungicide to protect the crop challenging sometimes

By
If you grow flax in Manitoba, it will have pasmo. The fungal disease, also known as Septoria linicola, can be found in every western Canadian flax field, every year. But the severity varies, making it tricky for farmers to decide whether to apply a fungicide, says Rachel Evans, the Flax Council of Canada’s extension agronomist.
Crop Report, Crops, Local news

Warm temps make for good growth, crop insect and disease stress seen low

Manitoba Crop Report and Crop Weather report for July 4, 2017

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Precipitation amounts are below average for much of the province. Crops in the Southwest Region and the western part of the Central region would benefit from moisture. Crops in most regions are in good to excellent condition. Warmer temperatures are improving growth of warm season crops. Insect and disease pressure remains low in field crops.
Early flowering is the best time to spray wheat with a fungicide to protect it from fusarium head blight but first assess how much risk of the crop being infected.
Cereals, Crops, Local news

Heads up on fusarium head blight

Early flowering is the time to apply a prophylactic fungicide on wheat but first assess the field’s disease risk

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It’s time to turn a weather eye on cereal crops for fusarium infections. Fusarium head blight damaged a lot of Manitoba spring wheat last year and farmers should be assessing this year’s risk from the fungal disease that can cut wheat quality and yield. Since wheat is most susceptible to fusarium infection at flowering, early
Aphids on wheat (l) and an aphid mummy.
Crops, Local news

Alfalfa weevil levels rapidly decline, high levels of pea aphids still seen

Manitoba Insect & Disease summary for July 13

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Summary Insects: Levels of alfalfa weevil larvae are rapidly declining in some alfalfa fields as the larvae mature to pupae. Pea aphid levels are still a concern in some pea fields. Aphid levels are being monitored carefully in some cereal fields; high levels of natural enemies have also been noted in some of these fields and may be

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