Return to Canola Council Home
…
Fall herbicide: Frost, volunteer canola, cleavers and more
October 4, 2017
Weeds
-
-
Weeds: Late September, early October for perennials
September 27, 2017
Perennials such as thistles and dandelions are best controlled from mid-September to early October. Waiting at least a month after cutting will increase the target leaf area, but later dates increase the risk of losing healthy leaf tissue to frost. Without healthy leaf tissue, the herbicide can’t get translocation to the weed’s crown and storage roots where the killing can…
-
What is the best time for fall weed control?
September 20, 2017
Fall is a good time to control perennial and winter annual weeds, but spraying immediately after harvest may not provide the best results…
-
Second herbicide application: A scenario
July 6, 2017
A Canola Watch reader sent us this question: I have wild buckwheat at the 3- to 4-leaf stage that somehow got missed with the first application of Liberty 10 days ago . It's moderate in severity. Will it cause me grief at swath timing? And or will it have any effect on yield? Crop stage is 6-leaf or so…
-
Late herbicide: Is it worth it?
July 6, 2017
Wind and wet pushed back a lot of weed management and some fields are still not sprayed. In this situation, intense weed pressure can reduce yields by 20%, 30%, 50%... That's why early weed control has a huge positive effect on profitability, but late control is better than nothing. Late control can stop the yield loss, stop weeds from contributing…
-
Is a second herbicide application necessary?
June 22, 2017
A second in-crop spray only makes sense if…
-
Herbicide Qs on tank mixing, ideal weather, spray patterns and more
June 14, 2017
Here are some agronomy-related questions that dig a little deeper into herbicide performance in canola…
-
Cleavers: In-crop control
June 14, 2017
For in-crop management of cleavers in canola, both glyphosate and glufosinate work best on smaller spring-germinating plants. Early herbicide application is also best for crop yield. Use a rate and water volume suitable for cleavers. Find details in the provincial crop protection guides: crop protection for your province: Alberta Saskatchewan Manitoba…
-
Early weeds: Scout then spray
June 7, 2017
The Canola Council of Canada agronomy team looked at this photo above and discussed whether the field should be sprayed now or in a few days after more weeds have emerged. Consensus was that the field could have been sprayed a few days earlier. Angela Brackenreed, who scouted the field, says the weeds just became visible in the past three…