Steadfast^™ IS

Herbicide

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Steadfast IS herbicide is your go-to solution for control of grasses and volunteer canola in field corn. It comes in a low use rate extruded WG formulation for easy measuring and mixing. Steadfast IS comes with a built-in crop safener allowing for a wide window of application and use on low heat unit corn hybrids.

Benefits

Proven control of annual grasses

Steadfast IS provides dependable control of key annual grasses such as green foxtail and wild oat.

Crop protection under a wide range of conditions

Includes a safener allowing for use on short season hybrids.

Wide window

Steadfast IS can be safely applied to field corn up to the 6 leaf stage (V4).

Crops

Below lists the crops that Steadfast IS herbicide can be used on.

Corn

Grain Corn

Weeds Controlled

Foxtail, Green
Canola, Volunteer
Oat, Wild
Wheat, Volunteer

Registrations

Now registered for Eastern Canada.

Registered
Unregistered

Technical Specifications

Active Ingredient

NICOSULFURON 6.75 g/ac

RIMSULFURON 3.4 g/ac
Rates
- 27 g/ac
Acres Treated: 20 ac/bottle

Water Volume: Ground 20-40 L/ac (5-10 US gal/ac)
Application Timing

Hybrid field corn: 1-6 leaves (4 visible collars = V4)

Rainfast: 2 hours
Packaging

6 x 540 g bottles
Crop Rotation
- 4 months: winter wheat
- 10 months: spring wheat (including durum), oats, barley, canola, soybeans, dry beans¹, white beans, chickpeas, potatoes, corn (sweet or seed), field peas and flax.
- Anytime: field corn
¹Dry bean varieties may vary in their tolerance to herbicides, including to Steadfast IS. Since not all dry bean varieties as rotational crops have been tested for tolerance to Steadfast IS, first planting of each variety to field perviously treated with Steadfast Is should be limited to a small area to confirm tolerance prior to adoption as a general field practice. Additionally, consult your seed supplier for information on the tolerance of specific varieties of dry common beans to Steadfast IS herbicide.
Tank Mixes
- Non-GMO field corn: Steadfast™ IS herbicide can be tank-mixed with registered broadleaf herbicides to ensure cross-spectrum control of grass and broadleaf weeds
- Glyphosate Tolerant Corn: Tank-mix with a registered glyphosate
Adjuvants:

Non-GMO field corn: Add a non-ionic surfactant at 2 L per 1000 L spray solution (0.2% v/v)

Glyphosate-tolerant corn: If tank-mixing Steadfast™ IS with glyphosate, a non-ionic surfactant is not required.
Grazing

The pre-harvest interval for Steadfast IS is 30 days for corn (silage, fodder or grain).