PCP #34793 · FMC of Canada Limited · Herbicide
Group 2 soluble granule herbicide (thifensulfuron-methyl 33.35% + tribenuron-methyl 16.65%) for selective post-emergent control or suppression of broadleaf weeds in wheat (spring, winter, durum), spring barley, oats, and seedling/established forage and seed grasses. Numerous tank-mix options available.
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 | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus green foxtail (1-5 leaf, 2 tillers), barnyard grass (1-5 leaf), volunteer flax (1-8 cm), cleavers (1-4 whorls), annual sow thistle (1-4 leaf) | 12.1 g/acre | 80 d | 12 d |
| Barley | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus wild oats, volunteer oats, green foxtail, yellow foxtail, volunteer canary seed, and proso millet | 12.1 g/acre | 60 d | 12 d |
| 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; suppression of Canada thistle, Cleavers (1-3 whorls), Round leaved mallow, Scentless chamomile, Sow thistle, Stork's bill (2-6 leaf), Toadflax |
| 12.1 g/acre |
| 7 d |
| 12 d |
| Forage and Pasture | Broadleaf weeds listed on the label for RETAIN A SG Herbicide alone | 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; suppression of Canada thistle, Cleavers (1-3 whorls), Round leaved mallow, Scentless chamomile, Sow thistle, Stork's bill (2-6 leaf), Toadflax | 12.1 g/acre | 7 d | 12 d |
| Wheat | Annual smartweed, Russian pigweed, Ball mustard, Russian thistle, Burdocks (seedling), Shepherd's purse, Chickweed, Stinkweed, Cocklebur, Stork's bill (2-6 leaf, 2,4-D Ester only), Common ragweed, Tartary buckwheat, Corn spurry, Tumble mustard, Cow cockle, Volunteer rapeseed, False ragweed, Wild buckwheat, Flixweed, Wild mustard, Giant ragweed, Wild radish, Hare's-ear mustard, Wormseed mustard, Hemp-nettle, Indian mustard, Kochia, Lamb's-quarters, Plantain (common), Prickly lettuce, Redroot pigweed; suppression of Canada thistle, Round leaved mallow, Scentless chamomile, Sow thistle, Toadflax (2,4-D Ester only) | 12.1 g/acre | 7 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus Canada thistle (seasonal control) and wild buckwheat | 12.1 g/acre | 7 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus Canada thistle and wild buckwheat | 12.1 g/acre | 7 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus cleavers (excluding Group 2 resistant cleavers) | 12.1 g/acre | 60 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus cleavers and kochia (including Group 2 resistant kochia) | 12.1 g/acre | 60 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus cleavers and kochia (including Group 2 resistant kochia) | 12.1 g/acre | 60 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus green foxtail (1-5 leaf, 2 tillers), barnyard grass (1-5 leaf), volunteer flax (1-8 cm), cleavers (1-4 whorls), annual sow thistle (1-4 leaf) | 12.1 g/acre | 77 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus green foxtail and wild oats (and volunteer tame oats depending on Everest rate) | 12.1 g/acre | 80 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus kochia (including Group 2 resistant kochia); at higher Banvel rate also dandelion (spring or fall rosettes <15 cm) | 12.1 g/acre | 7 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus kochia (including Group 2 resistant), green foxtail and wild oats; at higher Banvel rate also dandelion (spring or fall rosettes <15 cm) | 12.1 g/acre | 80 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus weeds listed on the SIMPLICITY label | 12.1 g/acre | 7 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, plus wild oats, volunteer oats, green foxtail, yellow foxtail, volunteer canary seed, and proso millet | 12.1 g/acre | 60 d | 12 d |
| Wheat | Broadleaf weeds controlled or suppressed by RETAIN A SG alone, weeds controlled by MCPA Ester, volunteer imazamox/imazethapyr tolerant canola (Clearfield, 2-4 leaf), plus wild oats, volunteer oats, green foxtail, yellow foxtail, volunteer canary seed, and proso millet | 12.1 g/acre | 60 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; suppression of Canada thistle, Cleavers (1-3 whorls), Round leaved mallow, Scentless chamomile, Sow thistle, Stork's bill (2-6 leaf), Toadflax | 12.1 g/acre | 7 d | 12 d |
| Wheat | Weeds controlled by RETAIN A SG alone plus Canada thistle, lady's thumb, perennial sow thistle, stinkweed, volunteer canola, wild buckwheat and wild mustard; seasonal control of Canada thistle; suppression of cleavers | 12.1 g/acre | 7 d | 12 d |
| Wheat | Weeds controlled by RETAIN A SG alone plus Russian thistle, Burdocks (seedling), Cocklebur, Tumble mustard, Dandelion (spring and fall rosettes <15 cm), False ragweed, Wild radish, Wormseed mustard, Giant ragweed, Hare's-ear mustard, Indian mustard, Plantain (common), Prickly lettuce, Ragweed, Russian pigweed, Volunteer imazamox/imazethapyr tolerant canola (Clearfield); suppression of Canada thistle, Cleavers, Round leaved mallow, Scentless chamomile, Sow thistle, Stork's bill | 12.1 g/acre | 7 d | 12 d |
| Wheat | Weeds listed on the RETAIN A SG Herbicide alone label | 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 | MERGE® ADJUVANT Adjuvant: MERGE only — 10 litres/1000 litres of spray solution (1.0% v/v) | 10 litres/1000 litres of spray solution (1.0% v/v) |
| Required | non-ionic surfactant Apply with an adjuvant registered for use with RETAIN A SG Herbicide. Use only water as a carrier. | – |
| Required | non-ionic surfactant Adjuvants: Agral* 90, Ag-Surf*, Citowett * Plus, Liberate* Adjuvant, Ag-Surf* II, HiActivate*... 2 litres/1000 litres spray solution. NOTE: Adjuvant not required when tank mixing with MCPA Ester. | 2 litres/1000 litres spray solution |
| Required | non-ionic surfactant Adjuvants: AGRAL* 90, AG-SURF*, CITOWETT* PLUS, LIBERATE* ADJUVANT, AG-SURF* II, HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE*. | – |
| Required | non-ionic surfactant Adjuvants: AGRAL 90, AG-SURF, CITOWETT PLUS, LIBERATE ADJUVANT, AG-SURF II, HIACTIVATE NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT OR ENHANCE — 2 litres/1000 litres of spray solution | 2 litres/1000 litres of spray solution |
| Recommended | CITOWETT PLUS Recommended adjuvants are: AGRAL90*, AG-SURF*, CITOWETT* PLUS, LIBERATE* ADJUVANT... | – |
| Recommended | ENHANCE SUPER SPREADER ADJUVANT AND ENHANCE* | – |
| Recommended | HiActivate NON-IONIC LIQUID SPREADER/ACTIVATOR HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR | – |
| Recommended | IPCO Ag-Surf ORIGINAL Recommended adjuvants are: AGRAL90*, AG-SURF*, CITOWETT* PLUS, LIBERATE* ADJUVANT, AG-SURF* II, HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT AND ENHANCE*. | – |
| Recommended | SUPER SPREADER ADJUVANT SUPER SPREADER ADJUVANT AND ENHANCE* | – |
| Recommended | WEEDAWAY AG-SURF II Recommended adjuvants are: ... AG-SURF* II... | – |
| Recommended | non-ionic surfactant Recommended adjuvants are: AGRAL90*, AG-SURF*, CITOWETT* PLUS, LIBERATE* ADJUVANT, AG-SURF* II, HIACTIVATE* NON-IONIC LIQUID SPREADER/ACTIVATOR, SUPER SPREADER ADJUVANT AND ENHANCE*. | – |
| Compatible | non-ionic surfactant NOTE: Adjuvant not required when tank mixing with MCPA Ester. | – |
| Do not mix | additional non-ionic surfactant (when using Merge with Accord tank mix) DO NOT USE ADDITIONAL NON-IONIC SURFACTANT (when tank mixing with ACCORD Dry Flowable Herbicide using MERGE adjuvant) | – |
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.
