RELATIVE RESPONSE OF WEEDS TO PREEMERGENCE OR PREPLANT INCORPORATED HERBICIDES
| Buffalo bur |
E. Black nightshade | Barnyardgrass | Cocklebur | Canada thistle | Foxtails (pigeongrass) | Kochia | Ladysthumb (smartweed) | C. Lambs- quarters |
|
Eptam Nortron SC Pyramin Ro-Neet |
G F
G |
F-G F-G
F-G |
G-E P
G |
P P
P |
N N P N |
G-E F-G
G-E |
F F-G
P |
P G F-G P |
F-G P-F
F-G |
| Mallow, common | Pigweed, redroot | Pigweed, prostrate | C. Rag- weed |
Russian thistle | Sunflower, volunteer | Wild buckwheat | Wild mustard | Wild oats | Herbicide persistence | After 12 mo.
|
|
Eptam Nortron SC Pyramin Ro-Neet |
F-G P
F-G |
F-G G-E G F-G |
F-G F-G
F-G |
F P
F |
P F-G
P |
N P
N |
P-F F-G
P-F |
P P-F
P |
G F-G P F-G |
N O
N |
|
E = Excellent, G = Good, F = Fair, P = Poor, N = None
a This table is a general comparative rating of the relative effectiveness of herbicides to certain weeds. Under very favorable weather conditions, control might be better than indicated. Under unfavorable conditions, some herbicides rated good or fair might give erratic or unfavorable results.