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
1.5 - 3% O.M. ≥3% O.M.
Atrazine 4L3 qt 1.0 1.5 1.5 1,5 2.04 no
Atrazine 90DF3 lb 1.1 1.67 1.67 1.67 2.24 no
Axiom 68DF oz 13.0 16.0 20.0 28.0 22.0 1-2 oz
Balance Pro 4SC fl oz do not use 1.88/2.257 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/Cinch ATZ qt 2.1 2.1 2.1 2.4 2.6 up to 25%
Bicep Lite II Magnum 6L/Cinch ATZ Lite qt 1.5 1.5 1.5 1.9 1.9 up to 20%
Bullet 4L qt 2.5 3.0 3.75 3.75 4.0 20%
Camix 3.67SC qt 2.0 2.0 2.0 2.4 2.4 no
Clarity/Banvel 4S pt 0.54 1.0 1.0 1.0 1.0 no
Define 4SC fl oz 16 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 1-2oz
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%
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 4.75 no
FulTime 4CS/EC qt 2.6 2.9 3.1 3.0 4.0 no
G-Max Lite 5L pt 2.5 3.0 3.0 3.5 3.5 no
Guardsman 5L/LeadOff 5L pt 3.5 4.5 4.75 4.75 5.0 10-20%
Guardsman Max 5L pt 3.0 4.0 4.0 4.5 4.5 10-20%
Harness 7E pt 1.5 2.0 2.0 2.0 2.25 up to 25%
Harness Xtra 5.6L qt 1.8 2.0 2.3 2.3 2.3 up to 25%
Harness Xtra 6.0L qt 1.4 2.0 2.3 2.3 2.6 up to 25%
Hornet 78.5WDG6 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
Keystone LA 5.5SE qt 1.8 2.0 2.1 2.1 2.4 no
Lexar 3.7SC qt 3.0 3.0 3.0 3.5 3.5 no
Lumax 3.95SC qt 2.5 2.5 2.5 3.5 3.5 no
Marksman 3.2L pt 2.05 2.5 2.5 3.0 3.0 no
Micro-Tech 4ME3 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%
Partner 65WG3 lb 3.0 3.5 3.5 3.5 4.0 20%
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 70DG oz 1.4 1.4 1.4 1.4 1.4 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%
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
  1. 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.
  2. Average soil type in Pennsylvania.
  3. 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.). This rate restriction pertains to all atrazine containing products. See Table 2.2-7 for more information.
  4. For no-till only, apply 0.5 pt/A if less than 2% organic matter; otherwise, do not apply to coarse soils until after crop emergence.
  5. For no-till only, apply 2.0 pt/A if less than 2% organic matter; otherwise, do not apply to coarse soils until after crop emergence.
  6. 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.
  7. Lower rates may be used in combination with a recommended label rate of an atrazine/grass herbicide premix.