Table 1. Weed control data from fall applications of currently labeled corn and soybean products. Tolerance of corn and soybean to spring treatments may differ.
Product
Rate
 Unit Common Chickweed Purple Deadnettle Labeled for Application before1
% Control Corn Soybean
Roundup Ultra Max
Ammonium Sulfate
1.21
17
pt/A
lb/ 100 gallons
83
95
X
X
Rounup Ultra Max
2,4-D Ester
Ammonium Sulfate
1.21
1
17
pt/A
pt/A
lb/ 100 gallons
95
90
X
X
Canopy XL
Express
2,4-D Ester
Crop Oil Conc.
4.5
0.15
1
1

oz/A
oz/A
pt/A
% v/v
92
95
X
Squadron
2,4-D Ester
Crop Oil Conc.
3
1
1
pt/A
pt/A
% v/v
89
95
X
Backdraft
2,4-D
Ammonium Sulfate
Nonionic Surfactant
3
1
17
0.25
pt/A
pt/A
lb/100
gallons % v/v
91
75
X
Python WDG
Sencor 75DG
2,4-D Ester
Crop Oil Conc.

1
4
1
1
oz/A
oz/A
pt/A
%v/v
91
95
X
X
Sencor 75DG
2,4-D Ester
Crop Oil Conc.
8
1
1
oz/A
pt/A
% v/v
86
95
X
X
Gramoxone Extra
2,40D Ester
Seoncor 75DG
Nonionic surfactant
1.5
1
4
0.25
pt/A
pt/A
oz/A
% v/v
93
100
X
X
Command 3ME
2,40D Ester
Crop Oil Conc.
2
1
1
pt/A
pt/A
% v/v
98
83
X
Sterling
Crop Oil Conc.
16
1
fl oz/A
% v/v
62
90
X
Sencor 75DG
Sterling
Crop Oil Conc.
6
8
1
oz/A
fl oz/A
% v/v
91
90
X
X
Valor
Crop Oil Conc.
2
1
oz/A
% v/v
75
95
X
Valor
Classic
Crop Oil Conc.
2
2
1
oz/A
oz/A
% v/v
91
100
X
Valor
FirstRate
Crop Oil Conc.
2
0.6
1
oz/A
oz/A
% v/v
84
100
X
Basis
2,4-D Ester
Crop Oil Conc.
0.5
1
1
oz/A
pt/A
% v/v
99
Data not available
X
X
Basis
Princep 4L
Crop Oil Conc.
0.33
1
1
oz/A
qt/A
% v/v
100
Data not available
X
  
Express
Princep 4L
Crop Oil conc.
0.33
1
1
oz/A
qt/A
% v/v
100
Data not available
X
  
Basis
Princep 4L
Crop Oil Conc.
0.5
1
1
oz/A
qt/A
% v/v
100
Data not available
X
  
Simazine 90DF
Crop Oil Conc.
1.1
1
lb/A
qt/A
100
Data not available
X
  
1Some of the herbicides listed can carry over in certain environmental conditions. Rotation restrictions 4 months or less before corn or soybean are marked with an "X". Please read the labels before use.