Rotation is generally a critical part of mitigating any disease resistance problem. When it comes to preventing the breakdown of resistance in blackleg-resistant canola varieties, the first line of defence is an extended crop rotation with non-host crops. Beyond that, growers can also rotate the canola varieties they’re growing, suggests Anastasia Kubinec, oilseed specialist with Manitoba Agriculture,… Read More

It’s rare to find a western Canadian farmer who doesn’t have a tale to tell of the roaring comebacks canola has made in a growing season. Sure, there have been some wrecks — wicked windstorms that flip swaths or hail that leaves nothing but sticks — but the “Cinderella crop” (you’ve heard the song, right?)… Read More

When it comes to diseases that rob canola yields, blackleg often doesn’t get the credit it deserves. Many farmers underestimate the significance of blackleg, says Bruce McKinnon, an agronomist with Dekalb in Alberta, in the video below. “Blackleg is a powerful disease that seems to be able to adapt to whatever we throw at it. As we’ve tightened… Read More

Syngenta Canada’s foliar fungicide, Quilt, has received approval for an expanded label that now includes control of blackleg in canola crops. Quilt contains two actives for dual modes of action, azoxystrobin (Group 11) and propiconazole (Group 3), and is applied at the rosette stage between the second true leaf and bolting (2 to 6 leaf)… Read More

Here’s a little tidbit for you: if you’re scouting canola at the 2- to 4-leaf stage and spot blackleg lesions it’s already likely too late to spray. What’s more, a fungicide application later in the season is also likely a waste of money and time, even if symptoms are severe, because the yield loss has… Read More

 

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