Dealing with herbicide resistant weeds or trying to control weeds without access to certain herbicides really equates to the same thing — finding alternative means to control weeds. For attendees at Agritechnica, that meant a focus on iron, from inter-row and around the plant cultivation, to precision tillage, but also into the spot-spray realm. To… Read More

Whether you are a farmer, rancher, agronomist, researcher, or industry professional — you’ve likely encountered herbicide resistance. We know herbicide resistance is out there, and unfortunately, there’s no silver bullet to managing it. However, as Rob Klewchuk of Syngenta Canada explains in this Wheat School episode, there are some management things that can be done…. Read More

Not without controversy, applying glyphosate prior to harvesting a crop can help with crop and weed dry-down. If done too early, while the plant is still moving nutrients up into the kernels, a pre-harvest pass can cause glyphosate residues in the resulting grain. That’s always a concern when residue is possible, but mounting pressure against… Read More

A new report suggests that the removal of glyphosate from the farming toolbox would have negative financial impacts for farmers and cost the environment, as well. The report, “A Future Without Glyphosate,” was authored by Aimpoint Research and funded by Bayer. In it, authors looked at the complexities of glyphosate’s impact on agriculture and outlined… Read More

Wheat and barley growers in Western Canada have a new herbicide to aid in the fight to control troublesome weeds, such as herbicide resistant kochia. Corteva Agriscience has announced registration of OnDeck herbicide, a product that provides post-emergent weed control for wheat (durum spring and winter) and barley farmers in the brown soil zones. OnDeck… Read More

The advent of herbicide-resistant weeds was bad enough, but the expansion of type, area, and mode-of-action resistance has left nearly no field untouched across the all regions of Canada. What can we do and how did we get here? To tackle that question, host Lyndsey Smith is joined by Dr. Charles Geddes, Agriculture and Agri-Food Canada… Read More

There’s no silver bullet when it comes to managing weeds, and managing herbicide resistant populations is even tougher. One of the best ways to get ahead of weeds is crop competition. Jim Stute, independent research agronomist, has been evaluating the role of cereal rye as a weed suppressing crop to surprising results. Recorded at the National… Read More

Welcome back to The Agronomists! We’re kicking off 2023 with a focus on profitability. Is top yield the driver, or is long-term thinking a better bet for profit planning? Joining host Lyndsey Smith to dig in to this topic is Chad Anderson, of Anderson Agronomy Services, and Edgar Hammermeister, Saskatchewan farmer and agrologist with Western… Read More

A North Dakota State University (NDSU) study suggests that some kochia populations in western North Dakota likely have developed resistance to commonly used pre-plant burndown herbicides. Sold under the trade names Aim (carfentrazone) and Sharpen (saflufenacil), Group 14 herbicides are used by farmers to control kochia and other annual weeds. In the NDSU study, a… Read More

As weeds evolve, weed science must evolve to keep up. Today’s weed scientists work hard to tackle evolving herbicide resistant weeds and offer solutions to keep farmers one step ahead. Eric Johnson, weed scientist with the Agronomic Crop Imaging lab at the University of Saskatchewan, has been working on these solutions for decades through his… Read More

Waterhemp, the invading resistant weed, often misidentified as redroot, green, or smooth pigweed, continues to build resistance against herbicide control in Ontario. University of Guelph weed scientist Dr. Peter Sikkema and his research team have now confirmed waterhemp resistance to Group 27 herbicides in the province. He shared the news earlier this week during a Ridgetown/Simcoe… Read More

Biology is forever adapting — to tillage, to cropping systems, and to selection pressure of herbicide applications. The advent of herbicide resistance has created a huge challenge for farmers across North America. Some of the worst weeds include kochia, fleabane, wild oats, waterhemp, and Palmer amaranth. Managing these weeds and delaying more resistance requires a… Read More

 

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