PCP #34793 · FMC of Canada Limited · Herbicide
Group 2 sulfonylurea soluble granule herbicide (thifensulfuron-methyl + tribenuron-methyl) for post-emergent broadleaf weed control in wheat (spring, winter or durum), spring barley, oats, and seedling and established grass species for forage and seed production.
Crop × pest × application rate combinations from the official label. Rates converted to per-acre. PHI is the pre-harvest interval; REI is the restricted-entry interval. Always confirm against the official label PDF before applying.
| Crop | Target | Rate | PHI | REI |
|---|---|---|---|---|
| Barley | Stinkweed; Annual smartweed (green smartweed, lady's thumb); Tartary buckwheat; Ball mustard; Volunteer rapeseed; Chickweed; Volunteer sunflower; Corn spurry; Wild buckwheat; Cow cockle; Wild mustard; Flixweed; Groundsel (common); Hemp-nettle; Kochia; Lamb's-quarters; Narrow-leaved hawk's beard; Redroot pigweed; Russian thistle; Shepherd's purse (controlled). Canada thistle; Cleavers (1-3 whorls); Round leaved mallow; Scentless chamomile; Sow thistle; Stork's bill (2-6 leaf); Toadflax (suppressed). | 12.1 g/acre | 7 d | 12 d |
| Creeping Red Fescue | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Crested Wheatgrass |
| Labelled broadleaf weeds |
| 12.1 g/acre |
| 7 d |
| 12 d |
| Intermediate Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Kentucky Bluegrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Meadow Bromegrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Northern Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Oats | Stinkweed; Annual smartweed (green smartweed, lady's thumb); Tartary buckwheat; Ball mustard; Volunteer rapeseed; Chickweed; Volunteer sunflower; Corn spurry; Wild buckwheat; Cow cockle; Wild mustard; Flixweed; Groundsel (common); Hemp-nettle; Kochia; Lamb's-quarters; Narrow-leaved hawk's beard; Redroot pigweed; Russian thistle; Shepherd's purse (controlled). Canada thistle; Cleavers (1-3 whorls); Round leaved mallow; Scentless chamomile; Sow thistle; Stork's bill (2-6 leaf); Toadflax (suppressed). | 12.1 g/acre | 7 d | 12 d |
| Orchardgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Pubescent Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Slender Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Smooth Bromegrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Streambank Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Tall Fescue | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Tall Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Western Wheatgrass | Labelled broadleaf weeds | 12.1 g/acre | 7 d | 12 d |
| Wheat | Broadleaf weeds (same as labelled weeds for RETAIN A SG Herbicide) | 12.1 g/acre | 7 d | 12 d |
| Wheat | Stinkweed; Annual smartweed (green smartweed, lady's thumb); Tartary buckwheat; Ball mustard; Volunteer rapeseed; Chickweed; Volunteer sunflower; Corn spurry; Wild buckwheat; Cow cockle; Wild mustard; Flixweed; Groundsel (common); Hemp-nettle; Kochia; Lamb's-quarters; Narrow-leaved hawk's beard; Redroot pigweed; Russian thistle; Shepherd's purse (controlled). Canada thistle; Cleavers (1-3 whorls); Round leaved mallow; Scentless chamomile; Sow thistle; Stork's bill (2-6 leaf); Toadflax (suppressed). | 12.1 g/acre | 7 d | 12 d |
Adjuvant requirements, compatibility notes, and mixing restrictions from the official label. Always confirm against the official label PDF before mixing.
| Guidance | Adjuvant | Rate |
|---|---|---|
| Required | ADIGOR Adjuvant add Axial* 100 EC Herbicide with reduced agitation, and finally either Adigor adjuvant. DO NOT USE ADDITIONAL NON-IONIC SURFACTANT. | – |
| Required | ADIGOR Adjuvant RETAIN A SG Herbicide + AXIAL* 100EC Herbicide + MCPA Ester; ADIGOR* Adjuvant 700 mL/hectare; DO NOT USE ADDITIONAL NON-IONIC SURFACTANT. | 700 mL/hectare |
| Required | MERGE® ADJUVANT Adjuvant: MERGE only, 10 litres/1000 litres of spray solution (1.0% v/v). While maintaining agitation, add Accord and then Merge adjuvant. | 10 litres/1000 litres of spray solution (1.0% v/v) |
| Required | SURE-MIX™ SURFACTANT For the control of the weeds listed on the RETAIN A SG Herbicide alone, apply 30 grams (15 g a.i/ha) of RETAIN A SG Herbicide per hectare with a registered surfactant. | – |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant, ENHANCE Apply with an adjuvant registered for use with RETAIN A SG Herbicide. Recommended adjuvants are: AGRAL90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE, SUPER SPREADER ADJUVANT AND ENHANCE. | – |
| Required | Agral 90, Ag-Surf, Citowett Plus, Liberate Adjuvant, Ag-Surf II, HiActivate Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant, Enhance RETAIN A SG Herbicide + MCPA tank mix. Adjuvants: Agral 90, Ag-Surf, etc. at 2 litres/1000 litres spray solution. NOTE: Adjuvant not required when tank mixing with MCPA Ester. | 2 litres/1000 litres spray solution |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant, ENHANCE RETAIN A SG Herbicide + 2,4-D AMINE or ESTER. Adjuvants: AGRAL 90, AG-SURF, CITOWETT PLUS, etc. | – |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE Adjuvants: AGRAL' 90, AG-SURF', CITOWETT' PLUS, LIBERATE* ADJUVANT, AG-SURF* II, HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE*. (RETAIN A SG + BANVEL II/BANVEL DRY tank mix) | 2 litres/1000 litres of spray solution |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE Adjuvants: AGRAL' 90, AG-SURF*, CITOWETT' PLUS, LIBERATE* ADJUVANT, AG-SURF* II, HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE*. (RETAIN A SG + PERIMETER II tank mix) | 2 L/1000 litres of spray solution |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE Adjuvants: AGRAL* 90, AG-SURF*, CITOWETT* PLUS, LIBERATE* ADJUVANT, AG-SURF* II, HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE*. (RETAIN A SG + ATTAIN tank mix) | 2 L/1000 litres of spray solution |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant or ENHANCE RETAIN A SG Herbicide + LONTREL™ 360 + 2,4-D ESTER or MCPA ESTER; Adjuvants: AGRAL* 90, AG-SURF*, ... - 2 litres/1000 litres of spray solution | 2 litres/1000 litres of spray solution |
| Required | AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant or ENHANCE RETAIN A SG Herbicide + SIMPLICITY; Adjuvants: AGRAL* 90, AG-SURF*, ... - 2.5 litres/1000 litres of spray solution | 2.5 litres/1000 litres of spray solution |
| Required | Agral 90, Agsurf, Liberate Adjuvant, Ag-Surf II, HiActivate Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant or Enhance RETAIN A SG Herbicide + Everest* 70 WDG Herbicide; Agral * 90, Agsurf*, ... 0.25 % v/v | 0.25% v/v |
| Required | Agral 90, Agsurf, Liberate Adjuvant, Ag-Surf II, HiActivate Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant or Enhance RETAIN A SG Herbicide 30 g/ha ... Agral 90, Agsurf, Liberate Adjuvant, Ag-Surf II, HiActivate Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant or Enhance ... 0.25 % v/v | 0.25 % v/v |
| Required | Agral 90, Ag-Surf, Citowett Plus, Liberate Adjuvant, Ag-Surf II, HiActivate Non-ionic Liquid Spreader/Activator, Super Spreader Adjuvant or Enhance For broadleaf weed control, apply 30 grams of RETAIN A SG Herbicide per hectare with AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE at 2.0 litres per 1,000 litres of spray solution. | 2.0 litres per 1,000 litres of spray solution |
| Do not mix | additional non-ionic surfactant (in RETAIN A SG + ACCORD + MERGE tank mix) DO NOT USE ADDITIONAL NON-IONIC SURFACTANT; only MERGE adjuvant is to be used with this tank mixture | – |
| Do not mix | adjuvant when tank mixing with MCPA Ester NOTE: Adjuvant not required when tank mixing with MCPA Ester | – |
| Do not mix | additional non-ionic surfactant DO NOT USE ADDITIONAL NON-IONIC SURFACTANT (stated in Axial/Adigor tank mixes) | – |
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.
