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Tag Archives herbicides

Check your soil for herbicide residue
Columns, Crops

Check your soil for herbicide residue

Learn how to conduct plant bioassays to detect potential herbicide residues in your soil

By
Plant bioassays are a simple, inexpensive, accurate and direct method of determining if it is safe to grow crops on land previously treated with known herbicides or on cropland or compost with an unknown history of herbicide use. A bioassay can detect if herbicide or chemical residues are present in the soil or compost at […] Read more
Controlling volunteer canola in soybeans
Crops

Controlling volunteer canola in soybeans

New research in Manitoba finds fall tillage can reduce the volunteer canola seed bank

By
Volunteer canola is difficult to control in soybean because the two crops are often resistant to the same herbicides, leaving few chemical control options available to growers in Western Canada. That causes more than a few headaches for soybean growers, especially as research shows that Prairie canola seed harvest losses on average are around six […] Read more
The kochia plant here being pollinated by this bee could well be resistant to glyphosate.
Crops, News

Get back to basics to fight kochia

Using multiple and rotating modes of action can reduce selection pressure

By
In recent years, kochia has become a real issue across the Prairies. Kochia loves hot, dry weather, and as a prolific seed producer, the tumbleweed-shaped weed can spread quickly. What’s worse, kochia has a growing history of resistance, which can make it a tricky weed to manage. Agriculture and Agri-Food Canada research scientist Charles Geddes […] Read more
Tractor spraying soybean field
Columns, Crops

Avoiding herbicide mis-use

Herbicides have made it easier to feed the world, but beware of residuals and improper use

By
Herbicides are an integral and essential aspect of modern productive farming. Without our effective and efficient herbicides our dollar costs for food production would be double or triple what we now pay. Can your even visualize hand weeding agricultural and horticultural crops? As a youth I earned pocket money hand hoeing turnips and beets and […] Read more
The relatively dry spring and hot dry summer were extremely favourable to kochia in Western Canada.
Crops, Features

Herbicide diversity tackles kochia

As the weed works hard to outmanoeuvre chemicals, farmers expand the toolbox

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Joe Wurz takes kochia control seriously. The southern Alberta farmer at the Lathom Hutterite Colony takes all weeds seriously, but a few years ago when he observed some healthy-looking kochia plants standing in a patch of dead kochia on farm fields near Brooks — all had been sprayed with glyphosate — he suspected herbicide tolerance […] 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

By
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
A high clearance sprayer on a field in a prairie landscape
Crops, Features

Ontario report backs value of glyphosate

Thirty years of crop data support economic and environmental value

By
The value of glyphosate to the agriculture industry, the economy and the environment is getting a bad and uninformed wrap from critics, say two long-time experts in agronomy and pesticide regulation fields who have reviewed a mountain of data compiled by the Ontario Ministry of Agriculture and Rural Affairs (OMAFRA) which shows just the opposite. […] Read more
Straight cutting canola for the first time?
Canola, Crops, Wheat & Chaff

Straight cutting canola for the first time?

Q & A with Nutrien Ag Solutions

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Q: What should I know before I try straight cutting canola? A: Many growers have successfully adopted this practice and it’s a viable alternative to swathing and combining. As a standing canola crop reaches maturity the risk of pod shatter and/or pod drop is a key impediment to straight cutting. However, the introduction of varieties […] Read more
Fall quackgrass growth.
Crops, Wheat & Chaff

Pre- and post-harvest weed control

Q & A with CPS

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Q: When should I start weed control for my crop? A: A weed-free crop at harvest represents the cumulative effort of field management during the season. To manage many weed species, the season begins the previous fall. Pre-harvest weed control tends to focus glyphosate application on perennial weeds such as quackgrass or Canada thistle. At […] Read more
Choosing that pre-seed herbicide
Crops, Wheat & Chaff

Choosing that pre-seed herbicide

Q & A with CPS

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Q: What are some considerations when selecting a pre-seed herbicide application? A: There are significant benefits to applying herbicides prior to seeding or crop emergence. Pre-seed weed removal reduces competition for valuable moisture and nutrients required for seedling development. When selecting pre-seed herbicides, begin with the crop to be grown. Products available vary considerably by […] Read more

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