PRIMEXTRA II MAGNUM
PCP #25730 · Syngenta Canada Inc. · Herbicide
Group 5 and Group 15 liquid herbicide containing S-Metolachlor and Atrazine for control of annual grasses, broadleaf weeds, and yellow nutsedge in field corn, hybrid corn, silage corn, sweet corn, and popcorn. Can be applied preplant incorporated, preplant surface, pre-emergent, early post-emergent, or post-emergent. Tank mix options available with glyphosate, dicamba, CALLISTO, and Liberty herbicides in Eastern Canada.
Registered uses (8)
Crop × pest × application rate combinations from the official label. Rates converted to per-acre. Always confirm against the official label PDF before applying.
| Crop | Target | Rate | PHI |
|---|---|---|---|
| Corn | Annual Grasses and Broadleaf Weeds | 1.21–1.62 L/acre | 80 d |
| Corn | Annual Grasses and Broadleaf Weeds | 1.21–1.62 L/acre | 80 d |
| Corn | Annual Grasses and Broadleaf Weeds | 1.21–1.62 L/acre | 80 d |
| Corn | Annual Grasses and Broadleaf Weeds | 1.21–1.62 L/acre | 80 d |
| Corn | Annual Grasses and Broadleaf Weeds | 1.01 L/acre | 80 d |
| Corn | Crabgrass (smooth & hairy), Barnyard Grass, Foxtail (green, yellow, giant), Witchgrass, Fall Panicum, American Nightshade, Lady's-thumb, Yellow Nutsedge, Eastern Black Nightshade, Wild Mustard, Purslane, Prostrate Pigweed, Buckwheat, Smart Weed, Ragweed, Redroot Pigweed, Lamb's-quarters | 1.21–1.62 L/acre | 80 d |
| Field Corn | Tall Waterhemp | 1.62 L/acre | 80 d |
| Sweet Corn | Annual Grasses and Broadleaf Weeds | 1.21–1.62 L/acre | 45 d |
About this content. This page presents the official PMRA label as published by Health Canada's 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.