XtendiMax™ with VaporGrip® Technology is designed to be the industry’s lowest volatility dicamba (Group 4) formulation for use in Roundup Ready 2 Xtend® soybeans, cotton with XtendFlex® Technology, and other labeled crops. XtendiMax® with VaporGrip® Technology must be approved in the states where applicators intend to use the product. Individual states may require additional precautions and instructions for use of this product that are not included in the federal label. Applicators must have all the federal labeling with them at the time of use and must read and follow all label directions.
The XtendiMax® with VaporGrip® Technology labeling consists of 4 components:
- EPA-approved container label with complete directions for use.
- EPA-approved supplemental labels for Roundup Ready 2 Xtend® soybeans and cotton with XtendFlex® Technology.
- Required individual state-approved labels and guidelines.
- Application requirements information at www.xtendimaxapplicationrequirements.com.
Applicators must follow all label directions for use, restrictions, and precautions from all 4 sources.
Updated information can be found at:
- Stewardship, label, and other information sources at www.roundupreadyplus.com.
- Stewardship and education information at www.roundupreadyplus.com.
|Table 1. Summary of Application Requirements*|
|In-crop applications. Cracking up to and including beginning bloom (R1) in Roundup Ready 2 Xtend® soybeans. Emergence to 7 days prior to harvest in cotton with XtendFlex® Technology||Apply 22 fluid ounces per acre for any single in-crop application|
|Spray weeds that are less than 4 inches tall||Apply in a minimum of 10 gal- lons of spray solution per acre|
|Do not spray when wind is blowing towards a sensitive area||Wind speeds should be less than 10mph|
|Do not use ammonium sulfate or ammonium-based additives||Minimize drift, use nozzles approved on the website|
|Optimal application when wind speed is 3 to 10 mph||Maintain the required buffer to protect sensitive areas|
|Do not apply by air||15 mph ground speed or less|
|Do not exceed a boom height of 24 inches above the target pest or crop canopy||Use triple rinse cleanout procedure|
|*This summary is not a substitute for reading and following all directions.|
The EPA-approved container label contains directions for the broad range of uses and the supplemental labels outline uses for Roundup Ready 2 Xtend® soybeans or cotton with XtendFlex® Technology. The supplemental and state labels contain additional, crop specific instructions for use and define conditions for proper application. Requirements are summarized in Table 1.
XtendiMax™ with VaporGrip® Technology Use Instructions
Applicators must read the XtendiMax® with VaporGrip® Technology container label before proceeding with the more detailed use directions contained in the supplemental labels for use in Roundup Ready 2 Xtend® soybeans or cotton with XtendFlex® Technology. Contact state regulatory agencies for the most current local guidelines for use in the area where an application will be made.
Preplant, At-Planting, and PRE Applications to Roundup Ready 2 Xtend® soybeans and cotton with XtendFlex® Technology. The maximum combined quantity of this product is 44 fl oz/acre. A single application cannot exceed 44 fl oz/acre. Do not use less than 22 fl oz/acre.
POST Applications to Roundup Ready 2 Xtend® soybeans can be made from emergence (cracking) up to and through beginning bloom (R1 growth stage of soybeans). The maximum and minimum rate for a single in-crop POST application is 22 fl oz/acre. Spray weeds early when they are less than 4 inches tall. A second application of 22 fl oz/acre can be made at least 7 days after the first application and up to the end of the beginning bloom stage of soybean growth. POST applications on cotton with XtendFlex® Technology can be made from emergence up to 7 days prior to harvest. The use rate for a single in-crop POST application is 22 fl oz/acre on weeds less than 4 inches tall. A pre-harvest application can be made up to 7 days prior to harvest.
Using the proper nozzles is the most important element to help further reduce drift potential. Nozzles must be approved for use with XtendiMax® with VaporGrip® Technology. Go to www.xtendimaxapplicationrequirements.com to find a current list of approved nozzles and proper range of pressure to ensure use of ultra coarse droplets.
XtendiMax™ with VaporGrip® Technology may only be tank-mixed with products that have been tested and found not to adversely affect offsite movement potential of the herbicide. Find approved products at www.xtendimaxapplicationrequirements.com.
- If a water conditioning agent is needed, use an approved non-AMS water conditioner listed at www.xtendimaxapplicationrequirements.com.
- A nonionic surfactant (NIS) with at least 70% active ingredient can be used at 0.25% v/v. Crop oil concentrate, high surfactant oil concentrate, or methylated seed oil adjuvants can be substituted for NIS but some products may cause a temporary crop response.
Rainfastness and Surface Water Runoff
Rainfast in 4 hours. Rainfall or irrigation within 4 hours after POST application may reduce product effectiveness. Don’t make an application if rain is expected in the next 24 hours or if conditions favor surface runoff. Don’t apply to sandy soils with less than 3% organic matter where ground water depth is shallow.
Weed Resistance Management
Some naturally occurring weed biotypes that are tolerant to dicamba may exist in a weed population. Repeated use of herbicides with the same site of action may lead to selection for resistant weeds. Do not use less than 22 fl oz/acre of XtendiMax® with VaporGrip® Technology in a single application to help minimize the selection for resistant weeds and follow integrated weed management principles.
- Scout fields before and after an application to ensure the appropriate herbicides and rates are used for the weed species and sizes present.
- Use a broad spectrum soil-applied residual herbicide with other sites of action as a foundation for a weed control program.
- Utilize sequential applications of herbicides with alternative sites of action.
- Use full rates of XtendiMax® with VaporGrip® Technology.
- Rotate the use of Group 4 herbicides with other site of action herbicides.
- Use non-chemical weed control practice such as tillage, cultivation, and crop competition.
Information regarding the use of XtendiMax® with VaporGrip® Technology will continue to be updated and applicators should continue to check www.xtendimaxapplicationrequirements.com for the most current recommendations.
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