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Registered Crop Input Products / Steadfast™ IS Herbicide

Steadfast™ IS Herbicide

PCP #33369 · Corteva Agriscience Canada Company · Herbicide

Group 2

Group 2 herbicide containing rimsulfuron and nicosulfuron for post-emergent control of annual grasses and broadleaf weeds in field corn and lowbush blueberries. Has knockdown and soil residual activity. Absorbed through leaves and rapidly translocated to plant growing points. Rapidly stops growth of susceptible species with typical symptoms appearing within 5-7 days.

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Registered uses (3)

Crop × pest × application rate combinations from the official label. Rates converted to per-acre. Always confirm against the official label PDF before applying.

CropTargetRatePHI
BlueberryAnnual grasses (1-6 leaves, up to tillering)16.2–26.9 g/acre420 d
CornGreen Foxtail, Volunteer Canola including glyphosate tolerant varieties, Wild Oats, Volunteer Wheat16.2–26.9 g/acre30 d
CornGreen Foxtail, Volunteer Canola including glyphosate tolerant varieties, Wild Oats, Volunteer Wheat, Lamb's-quarters16.2–26.9 g/acre30 d

About this content. This page presents the official PRD label as published by Health Canada's Pesticides Regulatory Directorate (formerly the Pest Management Regulatory Agency), the source of record. Always read the official label and consult your provincial pesticide- application authority before use. Report an error.

Quick facts

Active ingredients
nicosulfuron 25.2 %
Mode of action: ALS / AHAS inhibitor (HRAC 2, Sulfonylurea)
CAS 111991-09-4
rimsulfuron 12.5 %
Sulfonylurea herbicide
CAS 122931-48-0
Formulation
granular
Resistance group
Group 2
First registered
2019-03-15
Registration expiry
2028-12-31