Palmer amaranth

Glyphosate-resistant weeds a real and present danger

Canadian farmers are being warned to be careful not to lose their most precious weed-control resource

It’s like an episode of the old TV show “The Twilight Zone” — farmers repeatedly spray their crops but the weeds refuse to die. But that’s reality for many farmers in the mid-southern United States. Glyphosate, “the world’s greatest herbicide,” is no longer effective there due to an explosion of glyphosate-resistant weeds caused by a

Potato seed growers want less herbicide drift

Potato seed growers want less herbicide drift

Sometimes potato plants show no signs of damage, but tuber germination can suffer and only be discovered the following year


When it comes to seed potatoes and herbicide drift, what you can’t see can hurt you. Increased use of glyphosate as a pre-harvest burn-down, as well as increased acreage for Roundup Ready corn and soybeans, has upped the use of the ubiquitous herbicide — and that’s upped the risk for seed potato growers. “If it’s


This photo taken at the Saskatoon CanoLab shows resistant kochia in the front tray and susceptible in the rear.

WGRF funding hunt for glyphosate-resistant kochia in southern Manitoba

A search for glyphosate-resistant kochia in Manitoba will be done this fall thanks to $17,000 in funding from the Western Grains Research Foundation (WGRF). WGRF executive director Garth Patterson confirmed the funding in an interview May 6. Agriculture and Agri-Food Canada’s Hugh Beckie, a world leader in herbicide-resistant weed surveys, will work with officials from

A million acres of glyphosate-resistant weeds in Canada?

A million acres of glyphosate-resistant weeds in Canada?

More than one million acres of Canadian farmland have glyphosate-resistant weeds growing on them, including 43,000 in Manitoba, according to an online survey of 2,028 farmers conducted by Stratus Agri-Marketing Inc. based in Guelph, Ont. The shockingly high Canadian numbers met with skepticism from some experts who suggest farmers might be mistaking hard-to-kill weeds with


Off-label glyphosate applications can be costly

Farmers are increasingly going “off label” applying higher rates of glyphosate to their Roundup Ready canola at a later crop stage than recommended, a survey commissioned by Monsanto Canada reveals. As a result farmers are losing three bushels an acre, Monsanto Canada said in a recent new release citing its own research. “The symptoms of

Spraying off label reduces yield and costs farmers money

Survey work conducted in 2012 by Stratus Agri-Marketing Inc. for Monsanto Canada shows the farmer practice of spraying off label is becoming more common. The Stratus research results — compiled from online surveys with over 1,700 farmers — confirm 45 per cent of farmers sprayed above label rates, up eight percentage points from 2011. The


Monsanto, DuPont settle lawsuits, set new $1.75-billion deal

The companies have dropped their lawsuits against each other and agreed 
to work together delivering new technology to farmers

Reuters / Monsanto Co. and DuPont have settled a bitter legal battle over rights to technology for genetically modified seeds and will drop antitrust and patent claims against each other while forging a new collaboration, the companies said March 26. The deal tosses out a $1-billion jury verdict DuPont was ordered to pay Monsanto last August. Instead,

Arysta launches broadleaf/grass/burndown combo

Arysta LifeScience has launched Inferno Duo Herbicide for spring wheat growers in Canada. Arysta says it combines the enhanced broadleaf activity of tribenuron (the same active ingredient in Express SG) with broadleaf and longer-lasting soil activity on grasses of flucarbazone. Inferno Duo also provides wide-spectrum burndown when mixed with glyphosate. “Together with glyphosate, Inferno Duo


Resistant weed headaches growing, survey shows

New survey says 43 per cent of farmers now believe they have herbicide-resistant weeds, but the number who report using more than one mode of action is falling

More Canadian farmers are reporting herbicide-resistant weeds, according to a new poll. Nearly two-thirds of the 500 farmers surveyed in a poll conducted for BASF Canada said weeds in their fields are getting tougher to control, and 43 per cent said they suspect they have weeds resistant to herbicides. In a similar poll conducted a

New herbicide option from MANA Canada

Priority’s active ingredient is florasulam, a Group 2 herbicide, designed to be tank mixed with the farmer’s choice of glyphosate

Western Canadian farmers will have another pre-seed, chemfallow and post-harvest weed control option starting this spring by tank mixing MANA Canada’s Priority herbicide with glyphosate. Florasulam, an off-patent Group 2 weed killer, is Priority’s active ingredient, which when tank mixed with glyphosate will have the same active ingredients as PrePass, Andrew Mann, MANA Canada’s general