For OMAFRA weed specialist Mike Cowbrough there are three fundamentals when it comes to weed control in soybeans. The first thing growers need to remember is weeds that emerge before and with the crop have the greatest yield impact. Number two on his list is the need to keep the crop weed-free up to the… Read More
Search Results for: herbicide resistance
Harvest weed seed control has been widely adopted in Australia as a tool in fighting herbicide resistance. When it comes to North America, farmers in southern States, such as Arkansas, have started implementing these concepts, but the idea of destroying weed seed viability has yet to take off here in Canada. In this Wheat School episode,… Read More
“If it doesn’t impact me, I don’t care…” I have attended many conferences across Canada and nothing gets farmers to fall asleep faster than speeches of the threat (actually, it’s reality) of herbicide resistance. For many farmers, it seems, they either don’t see this as something that impacts them or they don’t think it’s as serious an… Read More
Have you seen the NIMBY principle in action? It stands for “not in my backyard,” and it shows up in all manner of ways in agriculture — from the downplaying of potential problems, to perceptions on herbicide resistant weeds. How prevalent is it? In this second installment of Real Agriculture’s podcast focused on herbicide resistant… Read More
What’s the difference between non-performance of a herbicide application and weeds being resistant to the herbicide application? While less-than-stellar control can happen for a number of reasons, it’s usually marked by sprayer-associated-patterns in a field. Herbicide resistance, however, can be much more subtle but far more serious in the long run. Herbicide resistant weeds are… Read More
Let’s face it, change is difficult. And change for the sake of avoiding a problem in the long-term can seem exceedingly cumbersome. If that sentence makes you think about managing for herbicide resistance, you’re not alone. But no longer is this a “what if” for Canada — several types of weeds and several types of… Read More
The number one way to manage herbicide resistant weeds is to avoid them in the first place, says Mike Saxton with Syngenta US. That said, we’d be completely remiss to say that Canada or the U.S. was in a position to avoid herbicide resistant weeds. Several species are already resistant, some of those to more… Read More
Editor’s note: This is Owen Roberts’ Real Talk, Real Action column. Each week, Owen will offer his insight into how farmers and the agricultural industry can participate in the rural- and ag-related discussions going on around them. Contact Owen at [email protected] or on Twitter at @TheUrbanCowboy. What’s spreading faster in Canada — herbicide-resistant weeds, or growers… Read More
Weed control in pulse crops is an area that has to be managed well in order for your crop to reach its potential. Pulse crops are not very competitive once put into the ring with invasive weed species. While they’re not exactly the 98-lb weakling of the agricultural world, they do need the playing field… Read More
There is a growing concern from farmers and the industry to herbicide resistance. Whether its giant ragweed or kochia, hebicide resistance is a challenge for farmers. Currently, there is 8 different herbicide groups with confirmed resistance. According to Michael Schaad, Eastern Business Manager, BASF Canada, Glyphosate resistance was first found in the mid 90’s… Read More
Glyphosate-resistant Canada fleabane was first confirmed in Ontario in 2010. Fast-forward thirteen years and the weed now has developed resistance to multiple herbicide groups and can be found in Essex County, bordering Michigan, all the way east to Glengarry County, adjacent to the Quebec border. University of Guelph weed scientist Dr. Peter Sikkema has been… 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
It seems a bit of a no-brainer that the earlier weeds are taken out, the better. But that wasn’t always the case. “For years, standard farming practice was to delay that first in-crop herbicide application in order get a wider spectrum of weeds,” says Liz Simpson, canola agronomic systems manager with Bayer. “Today, that practice… Read More
Today’s show was recorded in front of a live audience, at National Farm Machinery Show (NFMS) in Louisville, Kentucky with our host Syngenta. In it, host Shaun Haney moderates two panel discussions: The first, on how North American farmers and researchers are dealing with herbicide resistance, with Phil Kreig, Joe Vink, Steve Johns. And the second, a… Read More
“Herbicide layering” looks to be an effective approach to managing hard-to-control cleavers in pulses. As Eric Johnson, weed scientist at the University of Saskatchewan, explains in this Pulse School episode, herbicide layering is the application of different modes of action sequentially. It usually involves a pre-seed soil-applied herbicide, such as sulfentrazone, ethalflurolin or pyroxasulfone, ,… Read More