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

Earlier this year, Dr. Peter Sikkema, professor with the University of Guelph and his research team confirmed Group 14 resistance in waterhemp at multiple locations in Ontario. Sikkema’s research team, including graduate student Lauren Benoit, has also confirmed waterhemp with cross-resistance to Groups 2, 5, and 9, as well as 14. In this episode of the Resistance Management… Read More

Ontario ministry of agriculture weed specialist Mike Cowbrough says it’s easy to pick on a herbicide when it doesn’t meet your weed control expectations. Unfortunately, he says, most growers don’t often have an opportunity to compare herbicide programs in their own field using check strips or unsprayed areas to test performance. But Cowbrough does have… 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

There’s a new tool available for growers in the fight against herbicide-resistant weeds, such as Canada fleabane. Corteva Agriscience has launched Elevore, a Group 4 herbicide option for pre-plant burndown of broadleaf weeds, including glyphosate-resistant Canada fleabane, in both field corn and soybeans. Last week at Canada’s Outdoor Farm Show, Dave Kloppenburg, Corteva’s Canadian category leader… Read More

Herbicide resistance is nothing new to Ontario farmers. It all started in 1973 when triazine-resistant lamb’s-quarters were found on a farm near Ripley, Ontario. Group 2 herbicide-resistant weeds were first documented in 1996. Fast forward to 2018, and we find that the province is now home to a host of glyphosate-resistant weeds including Canada fleabane, giant… Read More

If you’re talking early weed control, fall is the earliest you can get for next year’s crop. For many, a pre-harvest glyphosate application does double duty, drying down the crop and setting back those perennials weeds. But in this incredibly dry year, crop dry-down was so fast many farmers didn’t need to use glyphosate pre-harvest,… Read More

Resistance One of the many things to think about while managing herbicide resistance on your land is the rotation of modes of action. Many growers don’t realize how much Group 14 herbicide they are using. While there are many common add-ins used with glyphosate, more than half of them are from Group 14 — which,… Read More

If you’re running low on forage, chances are you might already be starting to look for hay suppliers outside of your area. Terry Kowalchuk, forage specialist for the Saskatchewan Ministry of Agriculture, says you have to be conscious of who you buy from, so that you do not get more than you bargained for. He… Read More

What if you could just point your phone at a weed and the phone would tell you what you were looking at? At one time it was a huge breakthrough to be able to take a picture of a weed and send a text message to an agronomist. It still is in fact, but sometimes… Read More