Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 20-54 - Agricultural Resource Management
Chapter ATCP 30 - Pesticide Product Restrictions
Subchapter VIII - Atrazine Pesticides
Section ATCP 30.32 - Maximum application rates
Current through August 26, 2024
Except where further restricted under ss. ATCP 30.34 to 30.38, the amount of atrazine active ingredient applied to any application site during any calendar year may not exceed the maximum amount specified for that site under this section.
(1) Except as provided under sub. (3) or (4), if at least one-fourth of the surface soil at the application site is a coarse soil, the maximum amount is 0.75 lb. per acre per calendar year.
(2) Except as provided under sub. (3) or (4), if less than one-fourth of the surface soil at the application site is a coarse soil, the maximum amount is 1.0 lb. per acre per calendar year.
Note: The following table summarizes subs. (1) and (2). See ss. ATCP 30.34 to for additional 30.38 local restrictions. -
|
Surface Soil Texture |
Maximum annual amounts (lbs. of atrazine active ingredient per acre per year) |
|
|
Atrazine applied previous year |
Atrazine NOT applied previous year |
|
|
Coarse |
0.75 |
0.75 |
|
Medium/Fine |
1.0 |
1.5 |
(3) If a rescue treatment is needed for a field of seed corn or sweet corn, the total amount of atrazine applied to that field in that calendar year may not exceed the following applicable amounts:
Note: The following table summarizes sub. (3). See ss. ATCP 30.34 to for additional 30.38 local restrictions.
|
Surface Soil Texture |
Maximum annual amounts (lbs. of atrazine active ingredient per acre per year) including rescue treatment |
|
Coarse |
1.5 |
|
Medium/Fine |
2.0 |
(4) An additional 0.5 lb. of atrazine active ingredient may be added to the maximum annual rate under sub. (2) if no atrazine product was applied to the application site during the previous calendar year.
