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Tag Archives herbicide resistance

wild oats
Crops, Features

Maul of the wild

Farmers who missed two-decade-old advice on wild oat management now face the fallout, but new research and technology might still turn the tide

By
Any Prairie farmers who ignored a 2005 paper on managing herbicide-resistant wild oats, back when it first dropped, might feel like they’re getting an “I told you so” finger wag if they were to read it today. Authored by Hugh Beckie, a former AAFC researcher known for his contributions to weed management and herbicide resistance […] Read more
Ryan Ruchkall uses a drone to collect field data on kochia and wild oat at EMILI’s Innovation Farms. EMILI is working with Geco Engineering to assess the performance of Geco’s weed mapping technology for predicting weed locations and detecting emerging herbicide resistance.
Crops, Features

Integrated weed management faces new future

Intercropping, predictive weed control could redraw battle lines in the fight against herbicide-resistant weeds

By
Glacier FarmMedia — Herbicide resistance in weeds is rising and there are no new chemistries on the horizon, so farmers will need fresh approaches to integrated weed management strategies. “I think the best management practice that someone could do for weed resistance is the one you’re not currently doing on your farm,” says Rory Cranston, […] Read more
VIDEO: Herbicide alternatives to glyphosate studied
Cereals, Crops

VIDEO: Herbicide alternatives to glyphosate studied

By
With glyphosate coming up against weed resistance – and outright bans as a herbicide in some countries – there’s likely a time on the horizon where it won’t be a crop grower’s ‘go-to’ herbicide for weed control. So, what other herbicide options are on the market that could help fill the gap? At this year’s […] Read more
wild oat
Crops, Features

Herbicide resistance flirts with crisis mode

Although not one-size-fits-all, integrated weed management may come to the rescue

By
They’re big numbers underscoring a big problem. In Saskatchewan, over 15 million acres of weed patches are resistant to Groups 1 and 2 herbicides. Of 31 known herbicide sites of action, 21 have confirmed resistance to a weed species. And, with 56 confirmed cases, Canada is third in the world for herbicide-resistant weeds. These are […] Read more
herbicide resistant kochia
Features, Pulses

Kochia tumbling into Prairie pulse crops

Scouting — and testing for herbicide resistance — will be important this spring

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Glacier FarmMedia — Concerns about the spread of kochia are growing for Saskatchewan’s pulse producers. Michael Brown, agronomy manager for Saskatchewan Pulse Growers, and Martin Carr, agronomy manager for WinField United, have seen the pesky tumbleweed spread throughout Saskatchewan, Alberta and the United States. The weed is resistant to some herbicides, among them Groups 4, […] Read more
(Adama.com/YouTube)
Cereals Production Guide, Crops, Wheat & Chaff

Broadleaf herbicide formulations set for cereal crops

Corteva, Adama launch new combination products

By
A combo of Group 4 and 2 actives is Corteva Agriscience’s latest entry for spring and winter wheat and barley growers in the Prairies’ Black and Grey soil zones to use against broadleaf weeds. Extinguish XL, launched in mid-March, is billed as a “pre-formulated, all-in-one application that delivers control of tough weeds like cleavers, dandelion, […] Read more
AAFC’s Breanne Tidemann says kochia (seen here) appears to be spreading to areas of Alberta where it wasn’t seen previously.
Crops, Features

Into the weeds: 2024 in preview

Prairie specialists consider which weeds are most likely to succeed as the season proceeds

By
The past few seasons have been a challenging time for farmers on the Canadian Prairies. Extreme heat, lack of precipitation and steep increases in production costs have caused some sleepless nights for many producers. As if those weren’t enough to contend with, another potential threat to crops will soon rear its ugly head: weeds. Grainews […] Read more
Planting perennial forages in ditches is recommended to help keep kochia from getting a toehold.
Crops, Features

Weed alerts on the southern front

A North Dakota weed expert cautions Prairie farmers about kochia, waterhemp and Palmer amaranth and their evolving herbicide tolerances

By
Of all the things shared by Prairie farmers on both sides of the Canada-U.S. border, an abiding love of their land, fretting over the weather and a no-nonsense, ‘get ‘er done’ attitude are among those that come to mind. Unfortunately, this also includes weed problems. Weeds know no borders, of course, so when weed trouble […] Read more
Kochia in a canola field. Photo: File
Crops

Crop-killing weeds advance across US farmland as chemicals lose effectiveness

Losing battle with weeds adds pressures to farmers already stressed by inflation, extreme weather

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Crop-killing weeds such as kochia are advancing across the U.S. northern plains and Midwest, in the latest sign that weeds are developing resistance to chemicals faster than companies including Bayer BAYGn.DE and Corteva CTVA.N can develop new ones to fight them.

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