Weeds

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “Tips for spraying in wind”
June 11, 2014

Tips for spraying in wind

How do you spray weeds in a timely fashion when every day seems too windy? Too windy, according to the Guide to Crop Protection,
Learn More
Featured image for “Cool, cloudy days reduce herbicide efficacy”
June 11, 2014

Cool, cloudy days reduce herbicide efficacy

Applications made when cool cloudy days follow cool nights will result in lower or slower herbicide efficacy than applications made in warm sunny days.
Learn More
Featured image for “Efficacy tips for each HT system”
June 4, 2014

Efficacy tips for each HT system

Weeds are coming up strong. As part of the Canola Council of Canada’s Keep It Clean campaign, we remind growers to use only registered
Learn More
Featured image for “Tank mix rules from PMRA”
June 4, 2014

Tank mix rules from PMRA

Canada’s Pest Management Regulatory Agency (PMRA) permits “unlabelled” tank mixes as long as products in the mix are used under the following conditions: 1.
Learn More
Featured image for “Biggest loss from weeds emerging before canola”
May 27, 2014

Biggest loss from weeds emerging before canola

If a burnoff didn’t get done or missed key yield robbing early season weeds such as quackgrass and dandelion, then control has to be
Learn More
Featured image for “Missed pre-seed? In-crop must be early”
May 22, 2014

Missed pre-seed? In-crop must be early

More growers may have skipped the pre-seed burnoff this year — given that weed emergence was delayed with the cool start to spring and
Learn More
Featured image for “Improve pesticide ROI”
May 22, 2014

Improve pesticide ROI

Growers face many weed, insect and disease management decisions throughout a growing season. In many cases, these applications provide a clear return on investment.
Learn More
Featured image for “Seed first or spray weeds?”
May 14, 2014

Seed first or spray weeds?

Early weed control is an important step in profitable canola production. Research on preseed weed control showed that early seeding was less important to
Learn More
Featured image for “The post-seeding, pre-emergence spray option”
May 14, 2014

The post-seeding, pre-emergence spray option

Applying a burnoff after seeding but before emergence is a risky option for those who want to get seeding. Consider the following risks with
Learn More
Featured image for “Weed out volunteers, perennials and winter annuals”
May 7, 2014

Weed out volunteers, perennials and winter annuals

Research shows that a pre-seed burnoff will result in higher yields versus no pre-seed burnoff. Walk fields to see what weeds are present and
Learn More
Featured image for “How to use photos for agronomy”
February 4, 2014

How to use photos for agronomy

Crop diagnostics often come down to good photography skills, especially since so many people have smart phones with cameras, and since agronomists cannot get
Learn More
Featured image for “Fall weed control and frost”
October 2, 2013

Fall weed control and frost

The onset of lower temperatures and shortened days in the fall trigger perennials such as Canada thistle, dandelion and quack grass to start moving
Learn More

Get Canola Watch in your inbox

E-newsletter sign up
Ask a question