Use of XtendiMax® Herbicide with VaporGrip® Technology in Soybean

XtendiMax® herbicide with VaporGrip® Technology (a restricted use pesticide) is a component of the Roundup Ready® Xtend Crop System, which includes Roundup Ready 2 Xtend® soybean with both dicamba and glyphosate herbicide tolerance. The benefits of this system include:

  • Control of over 350 species of weed including glyphosate-resistant broadleaf weeds, such as Palmer amaranth, waterhemp, and marestail, and other tough-to-control broadleaf weeds, such as lambsquarters and velvetleaf.

  • Up to 14 days of soil activity on certain small-seeded broadleaf weeds. *

  • Extended application flexibility before, at, and after planting.

*Always use dicamba with traditional residual herbicides in pre-emergence and post-emergence applications that have different effective sites of action, along with other Diversified Weed Management Practices.


Comparison of weed control between XtendiMax with VaporGrip Technology and Enlist One™ herbicides.

Read and Understand the Label – The specific label requirements for XtendiMax with VaporGrip Technology should be read and understood prior to use. State-specific details for XtendiMax with VaporGrip Technology can be found by clicking here or by checking with your state’s pesticide regulatory agency.

Mandatory Dicamba Training - The EPA label for XtendiMax with VaporGrip Technology (a restricted use pesticide) requires that certified applicators complete mandatory training prior to applying the product. To comply with the label and ensure a successful application, register for a dicamba training event in your state. You can find more about dicamba application requirements and in-person training sessions online by clicking here.

Application Rate – The seasonal total application rate cannot exceed 88 fl oz/acre of XtendiMax with VaporGrip Technology. As a burndown/early pre-plant, pre-plant, at planting, and pre-emergence application, no more than 44 fl oz/acre can be applied in a single season. For a post-emergence application to Roundup Ready 2 Xtend soybeans, a limit of 44 fl oz/acre can be applied prior to bloom or 45 days after planting, whichever comes first. Only two post-emergence applications are allowed per season. Additionally, only 22 fl oz/acre can be applied during a single post-emergence application. 

Application Window – The application window for XtendiMax with VaporGrip Technology in soybean is from pre-planting to prior to beginning bloom (R1 stage soybeans) or no more than 45 days after planting, whichever occurs first (Figure 2).

XtendiMax herbicide with VaporGrip Technology Application Window in Soybeans

Recordkeeping - Certified applicators MUST fill out records within 72 hours of spraying and keep them for a period of 2 years. Requirements of record keeping varies by state and some states have different requirements. Recordkeeping forms can be obtained by clicking here.

Application Requirements – Please visit for more information.

Drift Reduction Adjuvants Rate - When using an approved DRA for tank-mix products, as required by the XtendiMax with VaporGrip Technology label, the lowest rate allowed by the DRA label is recommended. Only use approved DRAs.

Mixing Products and Mixing Order - DO NOT tank mix any product with XtendiMax with VaporGrip Technology unless:

  1. The intended tank-mix product is identified on the list of tested products found at
  2. The intended products are not prohibited on either this label or the label of the tank-mix product; and all requirements and restrictions on are followed. 

Mixing Order – Add the following items in the order specified below:

(To access this information online, please see the specific label requirements for XtendiMax with VaporGrip Technology)

  1. Begin by agitating a thoroughly-cleaned sprayer tank three-quarters full of clean water
  2. Maintain constant agitation throughout mixing and application

  3. Drift reduction adjuvants (DRA) (when applicable)

  4. If an inductor is used, rinse it thoroughly after each component has been added.

  5. Products in PVA bags - Place any product contained in water-soluble PVA bags into the mixing tank. Wait until all water-soluble PVA bags have fully dissolved and the product is evenly mixed in the spray tank before continuing.

  6. Water-dispersible products (dry flowables, wettable powders, suspension concentrates, or suspo-emulsions)

  7. Water-soluble products (such as XtendiMax with VaporGrip Technology)

  8. Emulsifiable concentrates (such as crop oil concentrate, when applicable)

  9. Water-soluble additives (when applicable)

  10. Add the remaining quantity of water

  11. Maintain constant agitation during application

Nozzle Type and Pressure – Please visit for more information on Nozzle selection and Pressure.

Spray Volume - Apply in a minimum of 15 gallons of spray solution per acre. 

RRXtend Spray App - This is a farmer- and applicator-focused digital tool that provides location-specific weather forecasts, digital record-keeping capabilities, and educational resources related to the Roundup Ready Xtend Crop System. The app can be downloaded from the Apple Store and Google Play. More information can be found by clicking here.

Find an Applicator –To find an applicator in your area, click here. Applicators are being added regularly and can be searched by zip code. If you are interested in being listed as an applicator for your area, you can submit your application here as well.  


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