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2007 North Dakota Weed Control Guide
W-253, January 2007
R. K. Zollinger, NDSU Extension Weed Specialist
RELATIVE HERBICIDE
EFFECTIVENESS ON WEEDS-
VOLUNTEER ROUNDUP READY CROPS
The following ratings give relative herbicide effectiveness. Under favorable conditions control may be better than indicated
and under unfavorable conditions herbicides may give erratic results. Dry and cool weather increases herbicide
persistence while wet and/or warm weather reduces herbicide persistence.
Weed control ratings in this section are based on the following scale:
E = Excellent = 90 to 99% control
G = Good = 80 to 90% control
F = Fair = 65 to 80% control
P = Poor = 40 to 65% control
N = None =
No control
| CONTROL OF
VOLUNTEER
ROUNDUP READY
CROPS
|
Rate |
Canola -
PRE |
Canola -
3-leaf |
Canola -
6-leaf |
Corn -
10-18 inches |
Corn -
18-24 inches |
Corn -
24-40 inches |
Soybean -
V2-V3 |
Soybean -
V4-V6 |
|
POST Grass Herbicides
| |
| | |
| | |
|
| Assure II
| 4 fl oz
| N
| N
| N
| E
| E
| G-E
| N
| N |
| Fusilade DX
| 4 fl oz
| N
| N
| N
| E
| E
| G-E
| N
| N |
| - | 6 fl oz
| N
| N
| N
| E
| E
| E
| N
| N |
| Clethodim
| 3 fl oz
| N
| N
| N
| G
| P
| P
| N
| N |
| | 4 fl oz
| N
| N
| N
| E
| F
| P
| N
| N |
| | 6 fl oz
| N
| N
| N
| E
| G
| F
| N
| N |
| Select Max
| 4 fl oz
| N
| N
| N
| F
| P
| N
| N
| N |
| | 6 fl oz
| N
| N
| N
| G
| P
| P
| N
| N |
| | 8 fl oz
| N
| N
| N
| E
| F
| P
| N
| N |
| Broadleaf Herbicides
| | |
| | |
| | |
| Aim
| 0.5 fl oz
| -
| P
| N
| N
| N
| N
| P
| P |
| Atrazine
| 0.38 lb ai
| E
| N-P
| N
| N
| N
| N
| E
| P |
| | 0.5 lb ai
| E
| P
| N
| N
| N
| N
| E
| F |
| Balance Pro
| 3 fl oz
| E
| -
| -
| N
| N
| N
| -
| - |
| Basagran
| 0.5 pt
| -
| G-E
| F
| N
| N
| N
| N
| N |
| Bromox & MCPA
| 0.8 pt
| -
| E
| F-G
| N
| N
| N
| E
| E |
| Callisto
| 3 fl oz
| E
| E
| G
| N
| N
| N
| P
| P |
| Clopyralid & 2,4-D
| 0.25 pt
| -
| G-E
| F-G
| N
| N
| N
| F
| P |
| | 0.5 pt
| -
| G-E
| F-G
| N
| N
| N
| G
| F |
| Dicamba
| 2 fl oz
| -
| P
| N
| N
| N
| N
| G
| G |
| | 4 fl oz
| -
| P
| P
| N
| N
| N
| E
| E |
| | 5 fl oz
| -
| P
| P
| N
| N
| N
| E
| E |
| Extreme
| 1.5 pt
| E
| E
| G-E
| F-G
| F
| P
| N
| N |
| Flexstar
| 0.375 pt
| -
| E
| E
| N
| N
| N
| N
| N |
| | 0.5 pt
| -
| E
| E
| N
| N
| N
| N
| N |
| | 0.75 pt
| -
| E
| E
| N
| N
| N
| N
| N |
| FirstRate
| 0.1 oz
| E
| E
| F-G
| -
| -
| -
| N
| N |
| | 0.2 oz
| E
| E
| E
| -
| -
| -
| N
| N |
| | 0.3 oz
| E
| E
| E
| -
| -
| -
| N
| N |
| Hornet
| 1 oz
| P-F
| G
| F
| N
| N
| N
| E
| F |
| | 2 oz
| F
| E
| E
| N
| N
| N
| E
| F-G |
| Huskie
| 11 fl oz
| -
| E
| G-E
| N
| N
| N
| G
| G |
| MCPA
| 0.5 pt
| P
| G-E
| P
| N
| N
| N
| P
| P |
| Laudis
| 3 fl oz
| -
| E
| G-E
| N
| N
| N
| G
| G |
| Option
| 1.5 oz
| -
| E
| E
| N
| N
| N
| P
| P |
| Pursuit
| 0.72 oz
| G-E
| E
| G-E
| G
| F
| P
| N
| N |
| Python
| 1 oz
| F-G
| -
| -
| N
| N
| N
| N
| N |
| Raptor
| 1 fl oz
| -
| E
| G-E
| P
| P
| N
| N
| N |
| | 2 fl oz
| -
| E
| E
| F
| P
| P
| N
| N |
| | 4 fl oz
| -
| E
| E
| G-E
| F
| P
| N
| N |
| Sencor
| 0.25 lb
| E
| G-E
| F
| N
| N
| N
| P-F
| P-F |
| Spartan
| 4 oz
| P-F
| -
| -
| -
| -
| -
| -
| - |
| Starane
| 0.5 pt
| -
| P
| P
| N
| N
| N
| P
| P |
| Status
| 1 oz
| -
| F
| P
| N
| N
| N
| E
| G |
| | 2 oz
| -
| F-G
| P-F
| N
| N
| N
| E
| E |
| | 4 oz
| -
| G
| F
| N
| N
| N
| E
| E |
| Steadfast
| 0.75 oz
| -
| E
| E
| N
| N
| N
| P
| P |
| Thifensulfuron
| 1/12 oz
| -
| P-F
| P
| N
| N
| N
| N
| N |
| | 0.33 oz
| -
| E
| G-E
| N
| N
| N
| N
| N |
| Tribenuron
| 0.167 oz
| P
| E
| G-E
| P
| P
| P
| P
| P |
| Ultra Blazer
| 0.75 pt
| -
| F-G
| P
| P
| N
| N
| N
| N |
| Valor
| 2.5 oz
| E
| -
| -
| -
| -
| -
| -
| - |
| WideMatch
| 0.125 pt
| -
| P
| P
| N
| N
| N
| F
| P |
| | 0.25 pt
| -
| P
| P
| N
| N
| N
| E
| G |
| 2,4-D
| 0.25 pt
| -
| G
| P
| N
| P
| P
| P
| P |
| | 0.5 pt
| -
| G
| P
| N
| P
| P
| P
| P |
Continue to next page
W-253, January 2008
|
