PCP #32943 · Isk Biosciences Corporation · Herbicide
Group 27 HPPD inhibitor herbicide for postemergence control of broadleaf and grassy weeds in field corn, sweet corn, seed corn and popcorn. Controls or suppresses key weeds including velvetleaf, waterhemp, pigweed, foxtails, and crabgrass.
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 |
|---|---|---|---|---|
| Field Corn | Amaranth, Palmer | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Amaranth, Powell | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Barnyardgrass | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Cocklebur, common | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Crabgrass, large | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Fleabane, Canada | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Foxtail, giant | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Foxtail, green | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Foxtail, yellow | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Lady's thumb | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Lamb's quarters, common | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Mustard, wild | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Pigweed, redroot | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Pigweed, smooth | 30.4–40.5 mL/acre |
| 45 d |
| 12 d |
| Field Corn | Purslane, Common | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Ragweed, common | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Ragweed, giant | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Shepherd's Purse | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Smartweed, Pennsylvania | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Velvetleaf | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Waterhemp, common | 30.4–40.5 mL/acre | 45 d | 12 d |
| Field Corn | Waterhemp, tall | 30.4–40.5 mL/acre | 45 d | 12 d |
| Popcorn | Broadleaf and grassy weeds | 30.4–40.5 mL/acre | 45 d | 12 d |
| Seed Corn | Broadleaf and grassy weeds | 30.4–40.5 mL/acre | 45 d | 12 d |
| Sweet Corn | Broadleaf and grassy weeds | 30.4–40.5 mL/acre | 35 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 |
|---|---|---|
| Recommended | MSO The use of methylated seed oil (MSO) is recommended with Shieldex 400SC Herbicide. Apply 1 % v/v MSO (1 litre per 100 litres spray volume) of the final spray volume. | 1% v/v (1 litre per 100 litres spray volume) |
| Recommended | adjuvant To increase efficacy it is highly recommended to use an adjuvant when applying this product. | – |
| Compatible | ammonium nitrogen fertilizer add the required spray adjuvants (methylated seed oil or ammonium nitrogen fertilizer) | – |
| Compatible | AMS liquid fertilizer and/or ammonium sulfate, and adjuvants | – |
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.
