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Back to Registered Crop Input Products
Registered Crop Input Products / Ultim™ Herbicide

Ultim™ Herbicide

PCP #32709 · Corteva Agriscience Canada Company · Herbicide

Group 2

Group 2 herbicide containing rimsulfuron and nicosulfuron for postemergence control of annual and perennial grasses and broadleaf weeds in field corn and lowbush blueberries. Controls barnyard grass, foxtails, quackgrass, redroot pigweed (including triazine resistant), volunteer canola, and other weeds. Must be applied with non-ionic surfactant.

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Registered uses (4)

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

CropTargetRatePHI
BlueberryBlack bulrush13.5 g/acre420 d
BlueberryQuackgrass, Annual grasses, Redroot pigweed, Suppression of poverty oatgrass, ticklegrass, and black bulrush13.5 g/acre420 d
CornAnnual and perennial grasses and broadleaf weeds13.5 g/acre–
CornBarnyard Grass, Fall Panicum, Green Foxtail, Long-spined sandbur, Proso Millet, Quackgrass, Redroot Pigweed (including triazine resistant), Volunteer Canola, Yellow Foxtail (suppression only), Old Witch Grass13.5 g/acre–

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
rimsulfuron 37.5 %
Sulfonylurea herbicide
CAS 122931-48-0
nicosulfuron 37.5 %
Mode of action: ALS / AHAS inhibitor (HRAC 2, Sulfonylurea)
CAS 111991-09-4
Formulation
granular
Resistance group
Group 2
First registered
2017-04-25
Registration expiry
2029-12-31