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Tag Archives weed control

Is rotating your herbicides enough?
Crops, Features

Is rotating your herbicides enough?

Integrated weed management can slow herbicide resistance, but rotation is just one piece

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Integrated weed management (IWM) is not rotating herbicides or modes of action. IWM is combining one of more different weed management techniques, such as chemical, cultural, physical or biological weed control. Some IWM methods are easy to implement, such as making sure you select good, certified seed that will grow vigorously and out-compete weeds. Seeding […] Read more
cornfield
Corn, Crops

What to watch for in young corn

A strong start to your corn crop will ensure you a rewarding harvest

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The first step in guaranteeing a profitable harvest is ensuring corn plants are thriving in the early stages of growth. At the planting to seedling stage, corn is most susceptible to seed and root rot diseases. Disease such as seedling blight, and root rots caused by pythium, fusarium or rhizoctonia could affect seedlings, particularly in […] Read more
The diamondback moth is one of the more common insect pests that can reduce yield in mustard crops.
Columns, Crops

Weeds, disease and insects in mustard

In the final part of a 4-part series on mustard agronomy, Ross McKenzie turns his attention to pests

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Weed control is generally my greatest concern when growing mustard. Weed competition can greatly reduce mustard yields by competing for available light, nutrients and moisture. Although mustard seedlings are not very competitive with weeds, there are ways that growers can reduce the early effects of weeds: burndown of weeds in fall and/or early spring before […] Read more
Slow resistance with layered herbicides
Crops, Features

Slow resistance with layered herbicides

Gowan representatives say layering isn't just about dressing for fickle weather anymore

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Layering herbicides is a way to manage or delay herbicide resistance on the farm. The key is to apply a residual before seeding. The residual creates a herbicide layer in the soil. That layer kills weeds as they try to push emerge. With fewer weeds, there is less selection pressure on herbicides used later in […] Read more
Canada thistle
Crops, Features

Canada thistle still on ‘least wanted’ list

Early and thorough control is essential to keep Canada thistle under control

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Canada thistle has been a thorn in farmers’ sides since before Confederation. In 1865, when the Canada Thistle Act of Upper Canada was signed into law, Her Majesty required all citizens of Upper Canada “to cut, or to cause to be cut down all the Canada thistles growing theron.” The Act continued, “If any owner, […] Read more
Set your soybeans up for success
Crops, Soybeans

Set your soybeans up for success

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Many factors come in to play in getting your soybean crop off to a good start. Field selection, fertility, varietal selection and planting populations are some of the key elements to be considered during the planning phase. As the planning phase ends and you move to in-season practices, your early season weed control will be […] Read more
Weed control in a dry summer
Crops, Features

Weed control in a dry summer

Dry summer weather could mean a whole new slate of weed control challenges

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When it comes to weed control, no two seasons are the same. This year, many forecasters are predicting a hot, dry summer. What challenges will this bring? For one thing, some weeds that thrive better under hot, dry conditions, says weed expert, Robert Blackshaw with Agriculture and Agri-Food Canada in Lethbridge, Alberta. “Some weeds that […] Read more
Volunteer canola.
Crops, Features

Controlling seeds post-harvest

Can pulverizing weed seeds after harvest control weeds in Western Canada?

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As buzz builds about Australia’s Harrington Seed Destructor, researchers are looking at whether pulverizing seeds after harvest will work on the Prairies. But preliminary research shows post-harvest seed control is unlikely to work for all of Western Canada’s weeds. Breanne Tidemann presented new research at the Herbicide Resistance Summit in Saskatoon this March. Tidemann, who is […] Read more
Early season weed control is key
Canola, Features

Early season weed control is key

Spring spraying can be challenging. Look for the right weather and moisture conditions

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Early season weed control is a top priority for canola growers. Weeds that emerge before the crop are much more competitive than those coming up with the crop, and herbicide can’t undo the damage done by weeds left uncontrolled before emergence. Clark Brenzil, provincial weed specialist with the Saskatchewan Ministry of Agriculture, says research shows […] Read more
Farmers check out pea plots during the Western Applied Research Corporation’s annual field day at Scott, Sask. Weed control is a perennial problem for pea producers.
Crops, Pulses

Managing Group-2 resistant weeds in pulse crops across Western Canada

Cleavers, mustard, kochia and sow thistle are among the weeds getting harder 
to control, but there are methods, starting with good agronomy

By
Group 2 resistance is something that is really a big problem across Western Canada,” says Dr. Chris Willenborg, a researcher at the University of Saskatchewan’s plant sciences department. Willenborg has worked on several research projects that inform weed resistance in pulses. The bad news is that resistance is spreading. And the more farmers rely solely […] Read more

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