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File photo of palmer amaranth — the taller yellowish plants — infesting a U.S. cotton field. (Photo courtesy ARS/USDA)
Crops

Palmer amaranth pops back up in Ontario

Weed infamous in U.S. for multiple herbicide resistances

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A single plant that showed up this summer on the edge of a southwestern Ontario cornfield is cause for concern among Canadian farmers, weed specialists warn. Writing Monday in the ag ministry’s Field Crop News, Ontario provincial weed management specialist Mike Cowbrough said the plant in question, found in Wellington County, is confirmed as palmer […] Read more
The See and Spray systems allow for spot spraying that can significantly reduce the amount of chemical applied to a field.
Equipment, Machinery

Deere spray tech targets just the weeds

John Deere offers advanced, in-crop, spot-spray technology

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Having walked the aisles of the world’s largest ag machinery show, Agritechnica, in Hanover, Germany, one of the things that struck me was the sheer number of different sprayers, many from a host of brands unfamiliar to us here in North America. European farmers have an enormous choice of machines compared with what we’ve been […] Read more
Neale Heinrich stands in front of the Redekop Seed Control Unit at its booth at Ag in Motion on July 18, 2023. (Braedyn Wozniak photo)
Crops, Machinery

At Ag in Motion: Herbicide resistance fight needs integrated seed management

'Those seedlings we don’t manage to kill (are) probably the most herbicide-resistant'

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Harvest weed-seed control takes aim at reducing herbicide-resistant weeds that western Canadian farmers find more and more every year. At the Ag in Motion outdoor farm show this week, field residue management manufacturer Redekop won the Innovations Award for Environmental Sustainability for its harvest Seed Control Unit, which destroys more than 95 per cent of […] Read more
Originally a tow-behind unit that attached to the back of the combine, the newer iteration of the Harrington Seed Destructor is a mill that can be integrated with the combine. (Photo: deBruin Engineering Pty Ltd.)
Crops, Machinery

At Ag in Motion: Harvest weed control still in the mix

'You’re not going to spray your way out of this'

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It’s a relatively new solution to the age-old problem of trying to get rid of weeds without broadcasting the seed or using increasingly less effective herbicides — mechanical separation and pulverization of weed seed. Harvest weed seed control might not be a golden bullet to tackle glyphosate-, fluroxypyr- and dicamba-resistant weeds, but according to Agriculture […] Read more
Young corn plant sprout growing from the ground, Agricultural Farm Field, Selective Focus with Shallow Depth of Field
Columns, Crops

Weed resistance management is not just about herbicide rotation

Q & A with an expert

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Q: What other weed management tools should I consider in addition to herbicide rotation? A: Agriculture and food production has benefited from weed control with herbicides for many decades. Careful use of herbicides is a safe, quick and effective means to stop weeds from competing for water, nutrients and light. This is not a perfect […] Read more
The importance of pre-seed herbicide application
Crops, Wheat & Chaff

The importance of pre-seed herbicide application

Q & A with an expert

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Q: Should I skip the pre-seed herbicide application? A: As the long winter on the Prairies comes to an end, growers are starting to prepare for the 2023 growing season. With weather delays, many growers may be eager to get seeding and skip the pre-seed herbicide application. However, utilizing a pre-seed burnoff is a great […] Read more
This field sprayer carrying OnDeck herbicide approaches a patch of kochia to apply a unique combination of actives including tolpyralate, a newer active ingredient, and bromoxynil, which are Group 27 and Group 6 herbicides, respectively, for effective control of kochia, herbicide-resistant kochia and other broadleaf weeds.
Crops, Features

Corteva’s OnDeck offers crop rotation flexibility

A wheat and barley in-crop herbicide with no cropping restrictions for peas, lentils or canola the following year

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Wheat and barley producers in Western Canada in the Brown and Dark Brown soil zones will have a new tool for broadleaf weed control this growing season with a unique combination of actives that doesn’t have cropping restrictions the following year. Following recent product registration by the Pest Management Regulatory Agency, Corteva Agriscience is releasing […] Read more
Willem van Staveren says perennials and winter annuals such as dandelions, thistle and particularly kochia are targeted in the farm’s fall weed control program.
Crops, Features

Weed control timing is important: sooner is better than later

If weeds get the upper hand, a percentage of yield loss can’t be recovered

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Willem van Staveren says you can’t beat early weed control. In fact, every year on the family-run southern Saskatchewan farm, the Van Staverens plan for a post-harvest herbicide application to help control winter annual and perennial weeds in preparation for the following growing season. “It is important for us to make the late fall herbicide […] Read more
With the increasing incidence of herbicide resistance, producers must adjust their strategies to manage kochia and other resistant weeds.
Crops, Features

Your provincial weed outlook for 2023

Make sure these weeds are on your radar this year

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For as long as agriculture has existed in Western Canada, farmers have been waging a battle to control yield-robbing weeds in their fields. It will be a similar story in 2023. The difference this time around is that battle could be shaped largely by the location where it is being fought. While Manitoba received significant […] Read more
As part of a series of weed abundance surveys, 2,277 fields across Saskatchewan were surveyed in 2019 and 2021. That data was used to provide metrics such as the frequency and density with which weed species can occur in a region after post-emergence herbicide application.
Crops, Features

Herbicide-resistant weed update for Saskatchewan

Your biggest herbicide-resistant weed threats for 2023 based on the latest survey results

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As any farmer will attest to, herbicide-resistant weeds are a growing concern on the Canadian Prairies. In fact, it’s estimated they cost farmers in Western Canada as much as $530 million annually in lost yields and alternative weed management practices. Charles Geddes, a research scientist with Agriculture and Agri-Food Canada (AAFC), who specializes in weed […] Read more

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