PCP #28141 · AMVAC Chemical Corporation · Herbicide
Group 27 HPPD-inhibitor (carotenoid biosynthesis) suspension herbicide containing topramezone at 336 g/L for selective post-emergence control of grasses and broadleaf weeds in field corn (conventional and herbicide-tolerant), sweet corn and seed corn. Effective on some triazine- and ALS-resistant biotypes.
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 |
|---|---|---|---|---|
| Corn | Common lamb's quarters, lady's thumb, common ragweed, eastern black nightshade, wild mustard, redroot pigweed, green pigweed, volunteer canola (including glyphosate tolerant biotypes); suppression of velvetleaf, common chickweed, green foxtail, yellow foxtail, large crabgrass, barnyard grass, giant ragweed | 15 mL/acre | 45 d | 12 d |
| Corn | Common lamb's quarters, lady's thumb, common ragweed, eastern black nightshade, wild mustard, redroot pigweed, green pigweed, volunteer canola (including glyphosate tolerant biotypes); suppression of velvetleaf, common chickweed, green foxtail, yellow foxtail, large crabgrass, barnyard grass, giant ragweed | 15 mL/acre | 45 d | 12 d |
| Field Corn | Barnyard grass, common crabgrass (large and smooth), green foxtail, yellow foxtail, common chickweed, lamb's quarters, green pigweed, redroot pigweed, green smartweed, common ragweed, wild buckwheat, velvetleaf, pennycress, wild mustard, lady's thumb (includes triazine resistant biotypes) | 15 mL/acre | 45 d | 12 d |
| Field Corn | Common lamb's quarters, lady's thumb, common ragweed, eastern black nightshade, wild mustard, redroot pigweed, green pigweed, volunteer canola (including glyphosate tolerant biotypes); suppression of velvetleaf, common chickweed, green foxtail, yellow foxtail, large crabgrass, barnyard grass, giant ragweed | 15 mL/acre | 45 d | 12 d |
| Field Corn | Common lamb's quarters, lady's thumb, common ragweed, eastern black nightshade, wild mustard, redroot pigweed, green pigweed, volunteer canola (including glyphosate tolerant biotypes); suppression of velvetleaf, common chickweed, green foxtail, yellow foxtail, large crabgrass, barnyard grass, giant ragweed |
| 15 mL/acre |
| 45 d |
| 12 d |
| Field Corn | Common lamb's-quarters, lady's thumb, common ragweed, eastern black nightshade, wild mustard, redroot pigweed, green pigweed, green foxtail, yellow foxtail, large crabgrass, barnyard grass, fall panicum, old witchgrass, volunteer canola (including glyphosate tolerant biotypes); suppression of velvetleaf, common chickweed, giant ragweed | 15 mL/acre | 45 d | 12 d |
| Field Corn | Common ragweed, eastern black nightshade, wild mustard; suppression of common lamb's quarters, velvetleaf, common chickweed, lady's thumb, green foxtail, yellow foxtail, large crabgrass, barnyard grass, volunteer canola (including glyphosate tolerant biotypes), giant ragweed. Refer to the glyphosate label for additional weed species controlled or suppressed. | 15 mL/acre | 45 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 | ASSIST MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1.25% v/v, i.e. 12.5 litres per 1000 L spray solution |
| Required | Hasten NT Ultra Spray Adjuvant MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 0.5% v/v, i.e. 5 litres per 1000 L spray solution (IMPACT + atrazine mixes); 0.25% v/v, i.e. 2.5 litres per 1000 L spray solution (IMPACT + atrazine + Frontier Max mix) |
| Required | MERGE® ADJUVANT MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 0.5% v/v, i.e. 5 litres per 1000 L spray solution |
| Required | MERGE® ADJUVANT Merge® adjuvant ... must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 0.5% v/v, i.e. 5 litres per 1000 L spray solution |
| Required | XA Oil Concentrate Tank Mix 5: XA Oil Concentrate (1% v/v) | 1% v/v |
| Required | XA Oil Concentrate XA™ oil concentrate ... must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1% v/v, i.e. 10 litres per 1000 L spray solution |
| Required | XA Oil Concentrate MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1% v/v, i.e. 10 litres per 1000 L spray solution |
| Required | Hasten NT Spray Adjuvant Tank Mix 2: Spray adjuvants required: Hasten NT Spray Adjuvant (0.25% v/v) | 0.25% v/v |
| Required | Merge Adjuvant Tank Mix 5: Merge Adjuvant (0.5% v/v) | 0.5% v/v |
| Required | Hasten NT Spray Adjuvant Tank Mix 5: Hasten NT Spray Adjuvant (0.5% v/v) | 0.5% v/v |
| Required | Assist Oil Concentrate Tank Mix 5: Assist Oil Concentrate (1.25% v/v) | 1.25% v/v |
| Required | MSO Concentrate with Leci-Tech Tank Mix 5: MSO Concentrate with Leci-Tech (1% v/v) | 1% v/v |
| Required | Destination MSO Tank Mix 5: Destination MSO (0.25% v/v) plus UAN 28% (1.25% v/v) | 0.25% v/v plus UAN 28% (1.25% v/v) |
| Required | UAN 28% spray adjuvant... plus liquid fertilizer (UAN 28%) must be added to all applications as directed in specific tank mixes | 1.25% v/v |
| Required | Hasten NT spray adjuvant Hasten® NT spray adjuvant ... must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 0.5% v/v (2.5 L/1000 L when in Frontier Max tank mix, i.e. 0.25% v/v) |
| Required | Assist oil concentrate Assist® oil concentrate ... must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1.25% v/v, i.e. 12.5 litres per 1000 L spray solution |
| Required | MSO Concentrate with Leci-Tech MSO™ Concentrate with Leci-Tech ... must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1% v/v, i.e. 10 litres per 1000 L spray solution |
| Required | Destination MSO Destination™ MSO ... must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 0.25% v/v, i.e. 2.5 litres per 1000 L spray solution |
| Required | MSO MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1% v/v, i.e. 10 litres per 1000 L spray solution |
| Required | MSO MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 0.25% v/v, i.e. 2.5 litres per 1000 L spray solution |
| Required | liquid fertilizer (UAN 28%) MSO™ Concentrate with Leci-Tech, Destination™ MSO, Merge® adjuvant, Hasten® NT spray adjuvant, Assist® oil concentrate or XA™ oil concentrate plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1.25% v/v, i.e. 12.5 litres per 1000 L spray solution |
| Required | UAN 28% plus liquid fertilizer (UAN 28%) must be added to all applications of IMPACT Herbicide as directed in specific tank mixes. | 1.25% v/v, i.e. 12.5 litres per 1000 L spray solution |
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.
