Table 2.6-2. Relative effectiveness of "burndown" treatments for no-till forages
Table compares the relative effectiveness of herbicides on individual weeds. Ratings are based on labeled application rates and weed size or growth stage. Treatments are rated only for control of vegetation existing at the time of application.
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
| Roundup/Glyphosate | |||
|---|---|---|---|
| Gramoxone | (fall-applied) | (spring-applied) | |
| Foxtail spp. | 9 | 9 | 9 |
| Lambsquarters | 8 | 9 | 9 |
| Common ragweed | 8 | 9 | 9 |
| Annual smartweed | 7 | 7 | 7 |
| Mustard spp. | 8 | 9 | 9 |
| Chickweed | 8+ | 9 | 9 |
| Horseweed (Marestail) | 7 | 9 | 9 |
| Dandelion | N | 8+ | 6 |
| Canada thistle | 6 | 9 | 8 |
| Hemp dogbane, dewberry milkweed, etc | 6 | 8+ | 6 |
| Rye cover, volunteer small grains | 9 | 10 | 10 |
| Bromegrass or quackgrass sod | 6 | 9 | 9 |
| Orchardgrass or fescue sod | N | 9 | 7 |
| Timothy, bluegrass | 7 | 10 | 10 |
| Alfalfa sod | N | 8+ | 7 |
| Red clover | 8 | 8+ | 7 |
| Hairy vetch | 7 | 8 | 6 |
