Kochia is known for being an aggressive, adaptive weed. This year showed some farmers just how tenacious this species is. At spray timing, at harvest, and even after, kochia is a constant issue, and it’s not going away any time soon. Jason Lindgren, with NuFarm Canada, says that lighter competition this year due to dry… Read More

Highly competitive crops that make it difficult for weeds to gain a foothold in fields play a key role in effective herbicide resistance management. One way to make your crop more competitive is to increase seeding rates to produce higher plant populations. In this episode of RealAgriculture’s Resistance Management School, University of Manitoba weed scientist… Read More

Glyphosate-resistant kochia has started showing up in more of Western Canada, and as with other cases of resistance, it’s becoming evident you can’t rely on a single tool for too long. Minimizing resistant weed populations requires an integrated or diverse approach. The crop itself must help make survival difficult for potentially resistant weed seedlings, explains Rob… Read More

It’s worrisome, though not terribly surprising, that Manitoba Agriculture, Food and Rural Development (MAFRD) announced today confirmed glyphosate resistant kochia biotypes were found in the province. MAFRD jointly conducted a kochia survey across Manitoba in the fall of 2013, in conjunction with Agriculture and Agri-Food Canada (the Saskatoon Research Centre) and the University of Manitoba,… Read More

If ever we needed a new curse word, let me humbly suggest kochia. If you thought it was tough to kill before, it’s quickly becoming even more difficult. As Clark Brenzil, provincial weed specialist with Saskatchewan Ministry of Agriculture, explains, not only should kochia be taken off the label of every Group 2 herbicide, it’s… Read More

This morning Monsanto released a statement confirming the three fields in southern Alberta contain glyphosate resistant kochia. Not surprising considering that the growth of glyphosate resistant weeds in North America is on the rise. This new case though comes with a new twist that is different than other situations.  According to the Monsanto press release,… Read More