Weeds

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “Do a pre-snow winter annual weed assessment”
November 4, 2015

Do a pre-snow winter annual weed assessment

While it’s too late to spray effectively, growers and agronomists can check fields for the presence and population of winter annual weeds before the
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Featured image for “Consider tillage wisely”
October 7, 2015

Consider tillage wisely

Western Canada has made great strides in adopting minimum tillage practices that save time and diesel fuel, improve soils and improve sustainability scores. Here
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Featured image for “Use good data to evaluate products”
October 7, 2015

Use good data to evaluate products

Decisions on what variety, nutrient or crop input product to buy are improved with good data. When looking for data, here are a few
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Featured image for “Can’t spray canola regrowing under swaths”
September 23, 2015

Can’t spray canola regrowing under swaths

Rain and delayed harvest have caused some cut canola plants to regrow. This regrowth coming up through swaths can make for increased green matter
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Featured image for “Fall management to reduce canola volunteers”
September 16, 2015

Fall management to reduce canola volunteers

The first step in canola volunteer management is to do nothing. Leaving seeds undisturbed so they germinate in the fall or get eaten by
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Featured image for “Fall weeds: When to spray”
September 16, 2015

Fall weeds: When to spray

Fall is a good time to control perennial and winter annual weeds. The message this week includes two reminders: 1. Wait for post-harvest regrowth.
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Featured image for “Watch for jimsonweed and other strange weeds”
September 16, 2015

Watch for jimsonweed and other strange weeds

Weed management includes a keen eye for the unusual. “Unusual” can be suspicious patches of common weeds (herbicide resistance?) and presence of new unknown
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Featured image for “Verticillium wilt and other unusual sightings”
September 2, 2015

Verticillium wilt and other unusual sightings

Verticillium wilt was found in a canola field in Manitoba in 2014, and a survey of approximately 1,000 fields across Canada is underway this
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Featured image for “Weed escapes and fall weed management”
August 26, 2015

Weed escapes and fall weed management

While swathing or straight combining, keep an eye out for weed escapes. Unless they are an obvious sprayer miss or are weeds not well
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Featured image for “Keep it Clean – Harvest season reminders”
August 19, 2015

Keep it Clean – Harvest season reminders

(1) When spraying and prior to swathing or straight combining, stick to the pre-harvest interval (PHI) unique to each product. (2) Remember that canola
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Featured image for “Pre-harvest weed control”
August 19, 2015

Pre-harvest weed control

Growers considering a pre-harvest glyphosate cannot apply it to canola (RR or non-RR) until seed moisture drops to 30% or lower. This roughly coincides
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Featured image for “Crop protection products and international markets: What you need to know”
July 29, 2015

Crop protection products and international markets: What you need to know

When it comes to maintaining Canada’s reputation as a high quality canola supplier, everyone in the canola value chain has an important role to
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