VIKING™ Risor Herbicide
PCP #34792 · Viking Crop Production Partners Inc. · Herbicide
Group 2 soluble granule herbicide containing thifensulfuron-methyl and tribenuron-methyl for post-emergent control of annual broadleaf weeds and suppression of Canada thistle in wheat (spring, winter and durum) and spring barley. Multiple tank mix options available for expanded weed spectrum including Group 2 resistant kochia and annual grasses.
Registered uses (23)
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 |
|---|---|---|---|
| Barley | Broadleaf weeds controlled by VIKING Risor and weeds controlled by 2,4-D Ester | 12.1 g/acre | — |
| Barley | Broadleaf weeds controlled by VIKING Risor plus 2,4-D Ester, plus Group 2 resistant KOCHIA | 12.1 g/acre | — |
| Barley | Broadleaf weeds controlled by VIKING Risor plus Group 2 resistant KOCHIA | 12.1 g/acre | — |
| Barley | Broadleaf weeds controlled by VIKING Risor, Dandelion, Cleavers (1-6 whorl), Kochia including Group 2 resistant biotypes, Volunteer group 2 tolerant canola varieties | 12.1 g/acre | — |
| Barley | Broadleaf weeds controlled by VIKING Risor, cleavers (1-6 whorl), kochia including Group 2 resistant biotypes | 12.1 g/acre | — |
| Barley | Broadleaf weeds controlled by VIKING Risor, kochia including Group 2 resistant biotypes, cleavers (1-4 whorl) | 12.1 g/acre | — |
| Barley | Broadleaf weeds controlled by VIKING Risor, plus wild oats, volunteer oats, green foxtail, yellow foxtail, volunteer canary seed and proso millet | 12.1 g/acre | 60 d |
| Barley | Broadleaf weeds controlled by VIKING Risor, white cockle, dandelion, volunteer group 2 tolerant canola varieties | 12.1 g/acre | — |
| Cereals | Annual smartweed, Cow cockle, Hemp-nettle, Kochia, Lamb's-quarters, Redroot Pigweed, Stinkweed, Volunteer Rapeseed, Wild Buckwheat, Wild mustard; Suppressed: Canada thistle | 12.1 g/acre | — |
| Wheat | Annual smartweed, Cow cockle, Hemp-nettle, Kochia, Lamb's-quarters, Redroot Pigweed, Stinkweed, Volunteer Rapeseed, Wild Buckwheat, Wild mustard; Suppressed: Canada thistle | 12.1 g/acre | — |
| Wheat | Annual smartweed, Cow cockle, Hemp-nettle, Kochia, Lamb's-quarters, Redroot Pigweed, Stinkweed, Volunteer Rapeseed, Wild Buckwheat, Wild mustard; Suppressed: Canada thistle | 12.1 g/acre | — |
| Wheat | Annual smartweed, Cow cockle, Hemp-nettle, Kochia, Lamb's-quarters, Redroot Pigweed, Stinkweed, Volunteer Rapeseed, Wild Buckwheat, Wild mustard; Suppressed: Canada thistle | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor + 2,4-D, plus wild oats and green foxtail | 12.1 g/acre | 80 d |
| Wheat | Broadleaf weeds controlled by VIKING Risor and weeds controlled by 2,4-D Ester | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor and weeds controlled by 2,4-D Ester | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor plus 2,4-D Ester, plus Group 2 resistant KOCHIA | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor plus Group 2 resistant KOCHIA | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor, Dandelion, Cleavers (1-6 whorl), Kochia including Group 2 resistant biotypes, Volunteer group 2 tolerant canola varieties | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor, cleavers (1-6 whorl), kochia including Group 2 resistant biotypes | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor, cleavers (1-6 whorl), kochia including Group 2 resistant biotypes | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor, plus wild oats, volunteer oats, green foxtail, yellow foxtail, volunteer canary seed and proso millet | 12.1 g/acre | 60 d |
| Wheat | Broadleaf weeds controlled by VIKING Risor, white cockle, dandelion, volunteer group 2 tolerant canola varieties | 12.1 g/acre | — |
| Wheat | Broadleaf weeds controlled by VIKING Risor, white cockle, dandelion, volunteer group 2 tolerant canola varieties | 12.1 g/acre | — |
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.