Table 2.2-11. Corn herbicide preplant or preemergence rates per acre based on soil texture and organic matter.¹
| Herbicide |
Unit |
Coarse |
Medium2 |
Fine |
Medium |
Fine |
Inc. for Con-till |
Max rate on HEL, less than 30% residue |
| 1.5–3% O.M. |
≥3% O.M. |
| Atrazine 4L³ |
qt |
1.0 |
1.5 |
1.5 |
1.5 |
2.04 |
no |
1.6 |
| Atrazine 90DF³ |
lb |
1.1 |
1.67 |
1.67 |
1.67 |
2.24 |
no |
1.8 |
| Axiom 68DF |
oz |
13.0 |
16.0 |
20.0 |
18.0 |
22.0 |
1–2 |
— |
| Balance Pro 4SC |
fl oz |
do not use |
1.88/2.255
| 2.25/3.0 |
2.25/3.0 |
2.25/3.0 |
up to 25% |
— |
|
| Basis 75DF |
oz |
0.33 |
0.33 |
0.33 |
0.33 |
0.33 |
no |
— |
| Bicep II Magnum 5.5L/Cinch³ATZ |
qt |
2.1 |
2.1 |
2.1 |
2.4 |
2.6 |
up to 25% |
2.1 |
| Bicep Lite II Magnum 6L/Cinch ATZ Lite |
qt |
1.5 |
1.5 |
1.5 |
1.9 |
1.9 |
up to 20% |
N/A |
| Bullet 4L |
qt |
2.5 |
3.0 |
3.75 |
3.75 |
4.0 |
20% |
N/A |
| Camix 3.67SC |
qt |
2.0 |
2.0 |
2.0 |
2.4 |
2.4 |
no |
— |
| Define 4SC |
fl oz |
16.0 |
21.0 |
24.0 |
23.0 |
24.0 |
add 1 oz |
— |
| Define 60DF |
oz |
12.0 |
15.0 |
18.0 |
16.0 |
20.0 |
add 1–2 oz |
— |
| Degree 3.8ME |
pt |
3.0 |
4.0 |
4.25 |
4.0 |
5.0 |
up to 25% |
— |
| Degree Xtra 4.04 ME |
qt |
2.9 |
3.0 |
3.2 |
3.2 |
3.7 |
up to 25% |
N/A |
| Dual II Magnum 7.64E/Cinch |
pt |
1.33 |
1.67 |
1.67 |
2.0 |
2.0 |
up to 20% |
— |
| Eradicane 6.7E |
pt |
4.75 |
4.75 |
4.75 |
4.75 |
4.74 |
no |
— |
| FulTime 4CS/EC³ |
qt |
2.6 |
2.9 |
3.1 |
3.0 |
4.0 |
no |
4.0 |
| G-Max Lite 5L |
pt |
2.5 |
3.0 |
3.0 |
3.5 |
3.5 |
no |
N/A |
| Guardsman Max 5L³ |
pt |
3.0 |
4.0 |
4.0 |
4.5 |
4.5 |
10–20% |
3.9 |
| Harness 7E |
pt |
1.5 |
2.0 |
2.0 |
2.0 |
2.25 |
up to 25% |
— |
| Harness Xtra 5.6L |
qt |
1.4 |
2.0 |
2.3 |
2.3 |
2.6 |
up to 25% |
2.5 |
| Harness Xtra 6.0L |
qt |
1.8 |
2.0 |
2.3 |
2.3 |
2.3 |
up to 25% |
N/A |
| Hornet 78.7WDG4 |
oz |
4.0 |
5.0 |
5.0 |
5.0 |
6.0 |
no |
— |
| Keystone 5.25 SE |
qt |
2.5 |
2.65 |
2.8 |
2.8 |
3.0 |
no |
2.8 |
| Keystone LA 5.5SE |
qt |
1.8 |
2.0 |
2.1 |
2.1 |
2.4 |
no |
N/A |
| Lexar 3.7SC |
qt |
3.0 |
3.0 |
3.0 |
3.5 |
3.5 |
no |
N/A |
| Lumax 3.95 SC |
qt |
2.5 |
2.5 |
2.5 |
3.0 |
3.0 |
no |
N/A |
| Micro-Tech 4ME |
qt |
2.0 |
2.25 |
2.5 |
2.5 |
2.75 |
20% |
— |
| Outlook 6.0E |
fl oz |
14.0 |
16.0 |
18.0 |
16.0 |
18.0 |
add 1–2 oz |
— |
| Princep 90DF³ |
lb |
2.2 |
2.6 |
3.0 |
3.0 |
3.3 |
no |
— |
| Prowl 3.3E |
pt |
2.4 |
2.4 |
3.6 |
3.6 |
4.0 |
no |
— |
| Prowl H2O 3.8CS |
pt |
3.0 |
3.0 |
3.0 |
4.0 |
4.0 |
no |
— |
| Pursuit Plus 2.9E |
pt |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
no |
— |
| Python 80WDG |
oz |
0.8 |
0.89 |
1.0 |
1.0 |
1.1 |
no |
— |
| Radius 4SC |
fl oz |
16.0 |
18.0 |
19.0 |
19.0 |
21.0 |
up to 25% |
— |
| Surestart 4.25SE |
pt |
1.5 |
1.75 |
2.0 |
1.75 |
2.0 |
no |
— |
| Surpass 6.4E |
pt |
1.5 |
2.0 |
2.25 |
2.5 |
2.5 |
up to 25% |
— |
| Top Notch 3.2ME |
qt |
2.0 |
2.25 |
2.5 |
2.5 |
3.0 |
no |
— |
- This table shows applications rates for products applied alone. Rates may vary if tank-mixed with other products. If weed infestations are heavy, or if used in conservation tillage situations. See specific product label for additional information on application rates and use.
- Average soil type in Pennsylvania.
- On highly erodible ground with less than 30% residue, apply no more than 1.6 qt/A or 1.8 lb/A of 90 DF (i.e., 1.6 lb a.i.).
- On soils with less 3% organic matter, tank-mix Hornet WDG at 3.0 oz/A with a recommended label rate of an atrazine/grass herbicide premix.
- Lower rates may be used in combination with a recommended label rate of an atrazine/grass herbicide premix.
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