Table 2.6-3. Relative effectiveness of herbicides on weeds in forages
Weed control rating
- 10 = 95–100%
- 9 = 85–95%
- 8 = 75–85%
- 7 = 65–75%
- 6 = 55–65%
- N - Less than 55% or no control
Crop tolerance
- 0 = Excellent
- 1 = Good
- 2 - Fair
- 3 = Poor
Herbicide Key
- BA = Balan
- BU = Buctril
- BUT = Butyrac
- CH = Chateau
- EP = Eptam
- G = Gramoxone
- KE = Kerb
- PP = Poast Plus
- PR = Prowl
- PU = Pursuit
- RO = Roundup/glyphosate
- SE = Sencor
- SI = Sinbar
- VE = Velpar
- SEL = Select
- RA = Raptor
| BA | BU | BUT | CH | EP | G | KE | MB |
PP | PR | PU | RO | SI | VE | SEL | RA | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Herbicide Group (Mode of Action |
3 |
6 |
4 |
14 |
8 |
22 |
3 |
5 |
1 |
3 |
2 |
9 |
5 |
5 |
1 | 2 |
| ¹ Not triazine-resistant biotypes. | ||||||||||||||||
| Winter annuals | ||||||||||||||||
| Bluegrass, annual | 8+ | N | N | 7+ | 8+ | 8+ | 8+ | 8 |
6 | 6+ | 6 | 9 | 7+ | 8 | 7 | 6 |
| Brome, downy | 9 | N | N | N | 9 | 9 | 9 | 9 |
9 | 6 | 6 | 9 | 9 | 9 | 9 | N |
| Chickweed, common | 8 | 6 | 6 | 8+ | 7 | 9 | 8 | 9 |
N | 7 | 8+ | 9+ | 9 | 9 | N | 8+ |
| Henbit/red dead nettle | 6 | 8 | 6 | 8+ | 9 | 9 | 8 | 9 |
N | 8 | 7 | 8 | 9 | 9 | N | 7 |
| Mustard, wild | N | 8 | 10 | 7 | 6 | 9 | 6 | 9 |
N | 6 | 9 | 9 | 9 | 9 | N | 9 |
| Pennycress, field | N | 9 | 9 | 6 | 6 | 9 | 6 | 9 |
N | 6 | 9 | 9 | 9 | 9 | N | 9 |
| Ryegrass, annual | 8+ | N | N | N | 9 | 8 | 8+ | 7 |
9 | 8 | 6 | 8 | N | 7 | 9 | 6 |
| Shepherds purse | N | 9 | 9 | 6 | 7 | 9 | 6 | 9 |
N | 6+ | 8+ | 9 | 9 | 9 | N | 9 |
| Wild radish | N | 6 | 7 | 7 | N | 7 | N | 7 |
N | 6 | 8+ | 9 | 7 | 7 | N | 8+ |
| Yellow rocket | N | 7 | 8 | 6 | N | 8 | N | 9 |
N | 6 | 8+ | 9 | 9 | 9 | N | 9 |
| Summer annuals | ||||||||||||||||
| Barnyardgrass | 9 | N | N | 6 | 9 | 8 | 8 | 6 |
9 | 8+ | 8 | 9+ | 6 | 7 | 9 | 8 |
| Crabgrass | 9 | N | N | 6 | 9 | 6 | 8 | 6 |
9 | 9 | 8 | 9 | 7 | 7 | 9 | 8 |
| Foxtail spp. | 9 | N | N | 6 | 9 | 9 | 8 | 6 |
9 | 9 | 8+ | 9+ | 7 | 7 | 9+ | 8+ |
| Lambsquarters¹ | 9 | 10 | 8+ | 9 | 9 | 8 | 6 | 9 |
N | 9 | 7 | 9 | 9 | 9 | N | 8+ |
| Panicum, fall | 9 | N | N | 6 | 9 | 9 | 6 | 6+ |
9 | 9 | 8 | 9+ | 6+ | 6+ | 9 | 8+ |
| Pigweed, spp¹ | 9 | 8 | 8+ | 9 | 9 | 9 | 6 | 9 |
N | 9 | 9+ | 9 | 8+ | 9 | N | 9+ |
| Ragweed, common | N | 9 | 9 | 7 | N | 9 | N | 8 |
N | N | 7 | 9 | 8 | 8+ | N | 8 |
| Smartweed, Penn. | N | 9 | 6 | 7 | N | 9 | N | 8+ |
N | 8 | 8+ | 9 | 8+ | 8+ | N | 8 |
| Velvetleaf | N | 8 | 9 | 7 | N | 9 | N | 8 |
N | 8+ | 9 | 9 | 8 | 8+ | N | 9 |
| Perennials6 | ||||||||||||||||
| Aster spp. | N | N | 6 | N | N | 6 | N | 6 |
N | N | 7 | 8+ | 6 | 6 | N | 7 |
| Bedstraw spp. | N | N | N | N | N | 6 | N | N |
N | N | 7 | 8 | N | ? | N | N |
| Cockle, white | N | N | 7 | N | N | 6 | N | N |
N | N | 6 | 9 | 7 | 7 | N | ? |
| Crop injury | 1 | 2+ | 1+ | 2+ | 2 | 2 | 1 | 7 |
0 | 2 | 1 | 3 | 2 | 2 | 0 | 1 |
| Dandelion | N | N | 7+ | 7+ | N | N | N | 7 |
N | N | 7 | 8 | 6 | 8 | N | 6 |
| Dock spp. | N | N | 6 | N | N | N | N | 6 |
N | N | 7 | 9 | 6 | 7 | N | 7+ |
| Johnsongrass | 6 | N | N | N | 7 | 6 | N | N |
8 | N | 8 | 9 | N | N | 9 | 8 |
| Nutsedge, yellow | N | N | N | N | 8 | N | N | N |
N | 6 | 7 | 7 | N | N | N | 6 |
| Orchardgrass | N | N | N | N | 6 | 6 | 7 | N |
6 | N | N | 8 | 6 | 7 | 7+ | N |
| Plantain spp. | N | N | 7 | N | N | N | N | 7 | N | N | 6 | 8 | 7 | 7 | N | 6 |
| Quackgrass | N | N | N | N | 8 | 6 | 8 | N |
7 | N | 6 | 9 | 6 | 6 | 8 | N |
| Thistle, Canada | N | N | N | N | N | N | N | N |
N | N | 6 | 9 | N | N | N | 6 |
