Table 2.2-9. Herbicide effectiveness on perennial broadleaf weeds.
- Performance ratings are based on seasonal control from early-season application in corn.
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
| Herbicide | Canada Thistle | Dan- delion |
Dew- berry species |
Dock species | Hedge Bind- weed |
Hemp Dog- bane |
Horse- nettle |
Jerusalem Artichoke | Milk- weed |
Poison Ivy | Poke- weed |
Mug- wort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Soil-applied | ||||||||||||
| Atrazine¹ | 7 | 7 | N | 7 | 6 | N | N | 6 | N | 6 | 6 | N |
| Mixture | ||||||||||||
| Atrazine + Princep | 7= | 7 | 7 | 7+ | 7 | N | 7 | 6 | N | 7 | 7 | N |
| Postemergence | ||||||||||||
| 2,4-D | 7+ | 8 | 6 | 7+ | 8 | 7 | 6 | 7 | 6 | 7 | 7 | 6 |
| Accent | 6 | N | 8 | N | 7 | 6 | 6 | 6 | 6 | ? | 7 | N |
| Atrazine¹ | 6 | 6 | 6 | 7 | 7+ | 6 | 6 | N | N | 6 | 6 | N |
| Beacon | 7 | 6 | N | ? | 7 | 6 | 7 | 8 | 7 | ? | 7 | 6 |
| Callisto | 8 | 7+ | ? | ? | ? | 7 | 7+ | ? | 7 | ? | 7 | ? |
| Clarity/Banvel | 8 | 7+ | 6 | 8 | 8+ | 7 | 7 | 8 | 6 | 7+ | 6 | 7+ |
| Glyphosate²,³ | 8+ | 7 | 8 | 8 | 7+ | 8 | 7 | 8 | 8 | 8 | 9 | 7 |
| Laddok | 8 | 7 | N | 7+ | 7+ | 6 | 7 | 6+ | N | 7 | 6 | N |
| Marksman | 8+ | 8 | 6 | 8 | 8+ | 7 | 8 | 8 | 6 | 7+ | 7 | 7+ |
| Starane | N | N | N | N | 8 | 8+ | N | N | N | N | N | N |
| Stinger | 9 | 7 | N | 8+ | N | N | 6 | 9 | N | 7 | ? | 8 |
| Mixtures | ||||||||||||
| Accent + Clarity/Celebrity | 8 | 8 | 8 | 7 | 8 | 7 | 7+ | 8 | 7 | 7 | 7 | 7+ |
| Beacon + Clarity or 2,4-D/NorthStar | 8+ | 8 | 6 | 7 | 8 | 7 | 8 | 8 | 7 | ? | 7 | 7+ |
| Celebrity Plus | 8 | 8 | 8 | 7 | 8 | 7 | 7+ | 8 | 7 | 7 | 7 | 7+ |
| Curtail | 9 | 8 | 6 | 8+ | 8 | 7 | 6 | 9 | 6 | 7 | 7 | 8 |
| Distinct/Status | 8+ | 8+ | 6 | 8 | 8+ | 7 | 7 | 8 | 7 | 7+ | 7 | 7+ |
| Spirit + Clarity or 2,4-D | 8+ | 8 | 6 | 7 | 8 | 7 | 7+ | 8 | 7 | ? | 7 | 7+ |
| Yukon | 8+ | 8 | 6 | 7 | 8 | 7 | 7+ | 7 | 8 | ? | 8 | 7+ |
|
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