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Tag Archives herbicide resistance

Three fundamental elements to manage weeds
Crops, Wheat & Chaff

Three fundamental elements to manage weeds

Q & A with an expert

By
Q: What can I do to reduce potential herbicide-resistance issues? A: Driver weed populations on a farm level tend to remain relatively consistent over time. Some species may move into cropland from field edges and pasture lands and others may leave with reduction in tillage. Generally, the weed species that cause most issues on a […] Read more
Weeds exactly like the one shown above were found in Lucas’ corn field after he sprayed 
with Roundup.
Crops, Features

Crop advisor casebook: Why is this Manitoba field full of pigweed?

A Crop Advisor's Solution from the September 21, 2021 issue of Grainews

By
Lucas farms near Starbuck, Man., growing corn, soybeans, wheat, oats and canola. I received a call from Lucas at the end of June last year. He suspected he had some herbicide efficacy problems, as he noticed some redroot pigweed was not dying after he sprayed a field of corn with Roundup. “It’s been three weeks […] Read more
Provincial weed specialist Clark Brenzil says Saskatchewan may be coming out of a dry cycle in 2021, which means that C3 weeds, such as wild mustard (shown here) and wild oat could do better this year.
Crops

How will you prep your fields this spring for best weed control?

What you need to know heading into Plant 2021

By
Farmers need to be on their toes to keep weeds in check and prevent crop injury this spring due to environmental conditions last year and those developing now. To help make the job easier for you, Grainews reached out to weed specialists in each province for their recommendations this spring season. Alberta In Alberta, Agriculture […] Read more
Stopping the spread of wild oats
Crops, News

Stopping the spread of wild oats

There’s a fresh focus on the decades-old problem of herbicide-resistant wild oats

By
There are a number of things from the 1970s few people wish to see return: leisure suits, avocado-coloured bathroom fixtures and platform shoes may come to mind. But if you’re a crop farmer, there’s a more serious threat from that era making a comeback — wild oats. Sixty-nine per cent of wild oats across the […] Read more
Improperly cleaned spray booms create a V-shaped pattern of crop damage when starting a new field requiring a different herbicide.
Equipment, Features, Machinery

How recirculating booms can help slow herbicide resistance

AGCO demonstrates value of new sprayer tech with crop tour

By
Just a few years ago, herbicide resistance in weeds was something that seemed like a distant concern, something occurring elsewhere; however, it should be no surprise to anyone that today the International Survey of Herbicide-Resistant Weeds, which is a collaborative effort between weed scientists in more than 80 countries, says that is no longer true. […] Read more
In this photo from Mike Cowbrough’s October 2019 Pest Patrol column in Country Guide, light-green waterhemp plants approach the top of a soybean canopy after two ineffective applications of glyphosate. (Supplied photo)
Crops

Group 27 herbicide resistance arrives in Canada

Mesotrione-resistant waterhemp confirmed in Quebec

By ,
A persistent and fiercely competitive weed that has developed resistance to several herbicide groups since its arrival in Canada is now the first in the country to fight off a Group 27 product. Quebec’s Reseau d’avertissement phytosanitaire (RAP) last Friday reported a patch of waterhemp with resistance to mesotrione herbicide in the Haut-Richelieu municipality, in […] Read more
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

By
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

By
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
A new mode of action coming from Bayer
Corn, News

A new mode of action coming from Bayer

New MOA may help farmers fight herbicide resistance

By
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

By
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

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