Herbicide Tank-Mixing Sequence Best Practices

Mixing Sequence by Formulation Type

Always follow the specified mixing order on product labels. Allow time for complete mixing and dispersion after addition of each product. If no sequence is recommended, then follow the order below. DuPont nonagricultural-use herbicides are used as examples.

Mixing Order

Water-soluble bags
Water-dispersible granules, including DuPont™ Escort^® XP, Krovar^® I DF, Landmark^® XP, Oust^® Extra, Oust^® XP, Oustar^®, Perspective^®, Streamline^®, Telar^® XP, Velpar^® DF, Viewpoint^® and Westar^®
Wettable powders, including DuPont™ Hyvar^® X
Water-based suspension concentrates (aqueous flowables)
Water-soluble concentrates, including DuPont™ Hyvar^® X-L* and Velpar^® L
Other oil-based suspension concentrates
Emulsifiable concentrates (EC)
Adjuvants such as surfactants, oils, suspension aids, colorants, etc.
Soluble fertilizers
Drift retardants

Do not add oils, surfactants or ECs prior to dry formulations, since they will prevent adequate wetting and dispersion of dry products.

*Do not tank mix Hyvar^® X-L herbicide with Escort^® XP, Krovar^® I DF, Landmark^® XP, Oust^® Extra, Oust^® XP, Oustar^®, Perspective^®, Streamline^®, Telar^® XP, Velpar^® DF, Viewpoint^® or Westar^® herbicides.

Realize the Difference With DuPont

DuPont herbicides can be great tools to help you provide uninterrupted power supply to the public while keeping encroaching brush out of rights of way. These herbicides also help you to manage the safety issues associated with uncontrolled weed growth along roadsides or the elimination of environmentally degrading invasive weeds.

DuPont is committed to providing the information and resources necessary to support the continued use of existing products as well as the development of new technology to meet future weed and brush control needs.

More Information

A full calibration and user guide is available at landmanagement.dupont.com, including a checklist for applying nonagricultural-use herbicides, techniques for calibrating liquid and granular spraying equipment, common conversion factors, and other useful information. See your DuPont representative for printed copies of the guide.

For more specific application guidance on how to incorporate DuPont herbicides in your brush or weed control programs, please refer to their federally approved labels or contact your local DuPont sales representative. To find label information for any DuPont herbicide, click here.

Always read and follow all label directions and precautions for use. The DuPont Oval Logo, DuPont™, Escort^®, Hyvar^®, Krovar^®, Landmark^®, Oust^®, Oustar^®, Perspective^®, Streamline^®, Telar^®, Velpar^®, Viewpoint^® and Westar^® are trademarks or registered trademarks of DuPont or its affiliates.