(Dave Bedard photo)

Glyphosate not a carcinogen, U.S. EPA reiterates

Chicago | Reuters — The U.S. Environmental Protection Agency (EPA) said on Tuesday that glyphosate, a chemical in many popular weed killers, is not a carcinogen, contradicting decisions by U.S. juries that found it caused cancer in people. The EPA’s announcement reaffirms its earlier findings about the safety of glyphosate, the key ingredient in Bayer’s […] Read more

Good to be mixed up, in the right order

Good to be mixed up, in the right order

The sequence of the herbicide tank mix matters. Get it right with W.A.L.E.S

With more interest in recent years in tank mixing different herbicide products to provide more effective control of weeds, and reduce the risk of selecting weeds for herbicide tolerance, producers need to follow the proper mixing procedure. It’s not just a matter of which products can be safely tank mixed, but also what order different […] Read more


(Dave Bedard photo)

U.S. criticizes Vietnam ban of glyphosate imports

Chicago/Hanoi | Reuters — U.S. Secretary of Agriculture Sonny Perdue on Thursday criticized Vietnam’s move to ban imports of glyphosate-based herbicides, saying the decision would have “devastating impacts on global agricultural production.” Vietnam’s government said in a statement that the toxic level of herbicides containing glyphosate had long been of concern, in the latest display […] Read more



(Dave Bedard photo)

Second U.S. jury finds Bayer’s Roundup caused cancer

Reuters — A U.S. jury on Tuesday found Bayer’s glyphosate-based Roundup herbicide caused cancer, a blow to the company eight months after another jury issued a US$289 million verdict over similar claims in a different case. Tuesday’s unanimous jury decision in San Francisco federal court, which came after five days of deliberation, was not a […] Read more



Residual herbicide and crop injury

Residual herbicide and crop injury

When the worst happens: what questions to ask and how to soil test for a bioassay

Your cereal, oil seed or legume crop clearly shows that it has been significantly damaged by herbicide application or residual herbicide that was applied to cropland one or more years previously. You are considering possible legal action. What do you do next? First of all, you just don’t take a few photographs, complain about significantly […] Read more

(Dave Bedard photo)

Brazil health officials find glyphosate non-cancerous

Brasilia | Reuters — Analysts at Brazilian health agency Anvisa have determined that glyphosate herbicide does not cause cancer while recommending exposure limits as international pressure to reduce use of the chemical grows. Companies such as Bayer and its unit Monsanto, which produces glyphosate-based weedkillers, have faced legal challenges over allegations that glyphosate causes cancer. […] Read more



The kochia plant here being pollinated by this bee could well be resistant to glyphosate.

Get back to basics to fight kochia

Using multiple and rotating modes of action can reduce selection pressure

In recent years, kochia has become a real issue across the Prairies. Kochia loves hot, dry weather, and as a prolific seed producer, the tumbleweed-shaped weed can spread quickly. What’s worse, kochia has a growing history of resistance, which can make it a tricky weed to manage. Agriculture and Agri-Food Canada research scientist Charles Geddes […] Read more