Welcome to the National Sunflower
Association of Canada’s Official Website


The National Sunflower Association of Canada (NSAC) is a national, non-for profit, producer-funded organization that works on behalf of the sunflower growers of Canada to promote and expand the industry, both internationally and domestically.  The NSAC represents approximately 350 producers of both confectionary and oilseed sunflowers throughout the Prairie Provinces.

Latest News & Events

Sunflower News for June 17, 2016

Posted: June 17, 2016

Check out the latest newsletter for June 17, 2016 featuring current crop staging, the battle of cutworms and the first observed sign of sunflower rust in Manitoba.

June 17 newsletter

Planting progress, cutworms and production timelines

Posted: June 3, 2016


Sunflower Newsletter screenshot

Click here
to read the latest sunflower newsletter for June 3, 2016 on sunflower planting progress, cutworms and production timelines.

In-Crop Herbicide Selection and Timing

Posted: May 31, 2016

How to stage your sunflowers for spray timing?

The minimum plant stage for most herbicides in sunflower is 2-leaf. These are the first two leaves that come out opposite of the cotyledons. The next leaves must be half as long as the previous ones to be considered 3-4 leaf. The same rule applies up to the 8-leaf stage.

*Reminder to consult your Guide to Crop Protection for further information.  



Crop Stage

Weed Types

Registered Tank-mixes

Assert 300SC 32 ac/jug 2 to 8 leaf Broadleaf

(Stink weed, Mustard)

Muster T-N-G 8 to 12g 2 to 8 leaf Broadleaf Assure II
Express SG 6 g/ac 2 to 8 leaf Broadleaf (Lambsquarters, Wild Buckwheat) Assure II
Solo ADV 40 ac/case 2 to 8 leaf Broadleaf and Grassy None
Clethodim (Centurion, Poast Ultra. Select, Etc.) 20 to 54 ac/ case All growth stages Grasses None registered
Assure II 40 to 54 ac/case No leaf stage restrictions Grasses Express, Muster T-N-G

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