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Tag Archives herbicide resistance

As you begin harvesting your crops, take detailed notes about the weed populations you find. Each field will tell a story about your weed control strategies and how effective they are. Fall quackgrass is shown here.
Crops, Wheat & Chaff

Benefits of post-harvest weed control applications

Q & A with an expert

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Q: Should I be thinking about resistance management at harvest? A: We don’t often think about resistance management after harvest, but both during and after harvest is a great time to start observations and applications. As you begin harvesting your crops, take detailed notes about the weed populations you find. Each field will tell a […] Read more
Up against some resistance? These tips below could help reduce the chances of your fields becoming a haven for hard-to-eliminate weeds.
Crops, Features

Eight ways to boost your herbicide resistance prevention strategy

The latest information and improvements to management systems

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It’s a dire situation that the number of herbicide groups various weeds are resistant to continues to grow across the Prairies; however, farmers should take heart as there are many actions they can take to protect their fields this year and for years to come. It’s about managing weeds to reduce reliance on, and enhance […] Read more
Corn, News

A new mode of action coming from Bayer

New MOA may help farmers fight herbicide resistance

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In a February 13 conference call, Bayer management told ag media about the company’s extensive research and development pipeline. Short-stature corn is in the works — that is, corn plants with shorter stalks, meaning decreased lodging problems and fewer nutrients needed. But for most Prairie farmers, Bayer’s upcoming new herbicide with a brand new mode […] Read more
Ernest sprayed his flax field with a Group 1 herbicide to eliminate green foxtail in his crop, 
but the treatment didn’t appear to be having 
any affect.
Crops, Features

Crop advisor casebook: Herbicide not doing its job in this farmer’s flax field

A Crop Advisor's Solution from the March 3, 2020 issue of Grainews

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Back in June, I got a call from Earnest, who grows 2,500 acres of soybeans, canola, oats and flax on his farm near Starbuck, Man. He told me he’d recently sprayed his flax field with a Group 1 herbicide to eliminate green foxtail in his crop, but the treatment didn’t appear to be having any […] Read more
A waterhemp infestation can reduce soybean yields by 40 to 95 per cent.
Columns, Hart Attacks

War on weeds, take no prisoners

Hart Attacks: It will take money and commitment to just to hold enemy line

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A recent issue of the Manitoba’s provincial farm newspaper, the Manitoba Co-operator, carried some depressing news. The province might be losing the war on herbicide resistant weeds; reports from the U.S. say despite some kind of trade deal with China, U.S. farmers figure they will need more than a $25 billion bailout in 2020 — […] Read more
Columns, Crops

Manage herbicide resistance before you have it

Try a wide variety of 
weed control strategies


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On BASF’s 2019 Herbicide Resistance Management Webinar in March, Andrew Reid, BASF technical service specialist, said it’s always easier to manage herbicide resistant weeds before you have them in your field. One way to do this is to keep things clean. “Cleanliness is key,” Reid said. For example, if you don’t clean your combine after […] Read more
Kochia in a wheat field.
Crops, Features

Have your kochia tested for resistance

Keeping this weed in check required a multi-pronged management approach

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Western Canada has a kochia problem. It’s probably because kochia can tolerate things such as drought or salinity better than most crops; which allows it to proliferate in many areas of fields where the crop is less competitive. Kochia is one of the first weeds to emerge in spring and continues to grow until the […] Read more
Herbicide resistance continues to grow on the Prairies, but so will the list of management techniques to keep weeds such as wild oats at bay.
Columns, Crops

Reporter’s Notebook: How will we be farming in 20 years?

Lisa Guenther points to two agronomic problems shaping our future cropping plans

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Agriculture has undergone big changes in the last century. Yesterday’s farmers would be amazed by the technology contained in a tractor and seeder these days, or by the vaccines that protect livestock from disease. Or even by the phones we tuck into our back pockets, and occasionally drop in the muck. It’s an interesting exercise […] Read more
Tame oats exposed to Axial, a Group 1 herbicide. Susceptible plants yellow and die after being exposed to a Group 1 herbicide.
Crops, Features

Getting to know your herbicides: Group 1

A look at how Group 1 chemicals work and what you can do to manage weed resistance

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Although wild oats are an annual, Group 1-resistant wild oats have become a perennial problem on the Prairies. And wild oats aren’t the only weeds developing resistance to this chemical group. Grainews takes a look at how Group 1 chemicals work and what farmers can do to manage resistance. Group 1 herbicides are commonly applied […] Read more
Graham Collier, technical services manager at Nufarm, talks herbicide resistance during a plot tour west of Saskatoon.
Crops, Features

Which weeds will develop resistance?

Stay ahead: know which weeds are most likely to develop resistance to which chemistry

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Farmers who want to slow herbicide resistance need to understand weed biology, says Graham Collier. Collier is technical services manager at Nufarm. During a plot tour at Ag-Quest west of Saskatoon, he outlined some of the factors that contribute to herbicide resistance. One factor is the average risk of the herbicide group. Weeds are more […] Read more

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