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Zidua SC

Group 15


Residual control of key annual grasses and broadleaf weeds.

  • Group 15 chemistry delivers control of tough weeds, including resistant redroot pigweed and green and yellow foxtail
  • Residual activity controls germinating weed seedlings before or soon after crop emergence
  • Wide window of application from early pre-plant to early post-emergence and post-harvest

Labels & SDS



Applicable On

Field Corn

Field Peas




Labels & SDS

Additional Resources

Voraxor Complete Decision Tree

Voraxor Complete Decision Tree


Zidua SC and Voraxor Infographic

Benefits of Zidua SC

  • The residual activity of this Group 15 active provides consistent control of grass and broadleaf weeds, with flexible application timing
  • Requires rainfall to go into solution to then be taken up by the roots and shoots of germinating weeds before or shortly after emergence

Product Info & Application Guide

Weed Management

Weed Class

List of Weeds

Broadleafs – prior to emergence


Common chickweed

Eastern black nightshade


Lamb’s quarters3

Palmer amaranth4

Redroot pigweed3,4



Wild buckwheat

Grasses – prior to emergence

Annual bluegrass5

Barnyard grass4

Crabgrass (large)4

Downey brome

Foxtail (giant4, green3,4, yellow3,4)

Japanese brome

Ryegrass (Italian)4

Wild oats3


3 Early-season residual suppression only.

4 Controlled at 101 to 200 ml/ac (250 to 493 ml/ha).

5 Provides control when applied as a post-harvest treatment prior to weed emergence.

Application Tips

Restricted entry interval – 12 hours.

  • Minimum seed depth is 2.5 cm for chickpeas, corn, field peas and lentils, and 4 cm for soybeans.
  • A minimum of 2 inches of soil covering the vegetative portion of potato plants following drag-off or hilling is required.
  • Zidua SC must be applied and activated by moisture prior to weed emergence. When adequate moisture is not received after Zidua SC application, weed control may be improved by irrigation (except flood irrigation).
  • Do not use on peat or muck soils with 7% or more organic matter content.
  • Do not apply more than 1 application of Zidua SC per season.



  • Do not feed or graze treated hay or forage to livestock.

When to Apply



Chickpeas pre-seed, pre-emergence, fall prior to seeding
Faba Beans pre-seed, pre-emergence, fall prior to seeding
Field corn pre-seed1, pre-emergence, early post-emergence up to 4-leaf
Field peas pre-seed, pre-emergence, fall prior to seeding
Herbicide-tolerant soybeans2 pre-seed1, pre-emergence, early post-emergence up to the 3rd trifoliate
Lentils pre-seed, pre-emergence, fall prior to seeding
Sunflowers pre-seed1, pre-emergence
Potatoes pre-emergence 


1 Up to 30 days before seeding.

2 BASF is in the process of establishing import tolerances (maximum residue limits (MRLs)) for markets around the world. Talk to your grain buyer before applying to conventional or IP soybeans.

How Much to Apply

One case of Zidua® SC herbicide will treat 40 to 165 acres. 


Crop Rate by soil texture for residual control   Recommended
 Early-season residual control     
  Coarse Medium-fine Fine  
Organic matter ≤ 3%   3% ‹ Organic matter ‹ 7%  
Field corn (pre-plant, pre-emerge, early post-emerge) or herbicide-tolerant soybeans (pre-plant, pre-emerge) 101 ml/ac
(250 ml/ha)
134 ml/ac
(332 ml/ha)
169 ml/ac
(417 ml/ha)
200 ml/ac
(493 ml/ha)
40 to 80
Herbicide-tolerant soybeans (early post-emerge) 73 ml/ac (180 ml/ha) 110
Post-harvest application 49 to 97 ml/ac (120 to 240 ml/ha)6 83 to 165
Early-season residual suppression7,8
Chickpeas, field peas, potatoes, sunflowers 49 to 97 ml/ac (120 to 240 ml/ha) 83 to 165
Lentils 49 to 73 ml/ac (120 to 180 ml/ha) 110 to 165
Fall application
Chickpeas, faba beans, field peas, lentils 73 to 97 ml/ac (180 to 240 ml/ha) 83 to 110


6 Application rates are for all soil types. Use the higher rate for longer residual and under heavier weed populations

7 When an in-crop application of another registered herbicide is planned.

8 Do not apply Zidua SC to soils classified as sand.


Water volume

Ground application only

40 L/ac (10 gal/ac) minimum


Mixing order

Add products separately. Do not mix multiple products at the same time.

  1. Use a 50 mesh filter screen and fill clean tank ½ to ¾ full of water.
  2. Add water conditioners if needed.
  3. Add a Wettable powder or water dispersible granular (WG) tank-mix partner if applicable.
  4. Agitate.9
  5. Add a Micro-encapsulated (ME) tank-mix partner if applicable.
  6. Add the required amount of Zidua SC herbicide.
  7. Add a Liquid, solution or suspension tank-mix partner if applicable.
  8. Add an Emulsifiable concentrate (EC) tank-mix partner if applicable.
  9. Add Glyphosate if needed.
  10. Add any Surfactants or adjuvants if required.
  11. Fill the remainder of the tank with water. If the solution is left for an extended period of time, agitate once every 8 hours before spraying again.


Note: A detergent-based cleaning solution should be used before changing over to a different chemistry.


9 Do not over-agitate at any point in the process.

Tank Mixes

Herbicides for chickpeas, faba beans, field peas and lentils: Glyphosate10,11, Heat® LQ12, Voraxor®

Herbicides for corn: Aatrex® Liquid 480, Armezon®, glyphosate10, Heat LQ12, Voraxor

Herbicides for soybeans: Engenia®, glyphosate10, Heat LQ12, Voraxor

Herbicide for sunflowers: Glyphosate10

Herbicides for potatoes: Glyphosate, Sencor® 480 F

Herbicides for post-harvest application: Engenia, glyphosate10


10 Glyphosate present as isopropylamine salt, di-ammonium salt or potassium salt.

11 Can be applied in fall to lentils.

12 Pre-seed or pre-emergence only.