Timely Tips: Dicamba and Dicamba-Tolerant Soybeans

Dicamba-tolerant soybean technology has the potential to be a game-changer in the management of difficult to control weeds, some of which only have a limited number of useful herbicides. That’s why it’s critical that farmers adhere to the rules set for dicamba use in soybeans. We do not want to lose this technology because of misuse.

Here are a few things to remember about dicamba and dicamba-tolerant soybeans:

1. The only approved dicamba products for (over-the-top) use on emerged dicamba-tolerant soybeans are:
  • FeXapan®  herbicide Plus VaporGrip® Technology

  • Xtendimax® herbicide with VaporGrip® Technology

  • Engenia® herbicide

2. There are other dicamba products that may be used as a burndown application where dicamba-tolerant soybeans are to be planted; however, different rules apply, so make sure you know the regulations around applications in these scenarios.
3. When using one of the above approved dicamba products as a burndown, there is no plantback delay interval before soybeans can be planted.
4. When using other dicamba formulations as a burndown, strict rules apply as to when soybeans can be planted.
  • If 8 oz. dicamba is used as a preplant burndown, the soil needs to receive 1 inch of rainfall or irrigation water,

    and then

    delay 14 days after the water requirement has been met

    before the soybeans can be planted.

  • If 16 oz. dicamba is used in burndown, after the 1 inch water requirement, soybean planting must be delayed 30 days.

All dicamba products have their own individual label usage rules. The suggested rates above should be considered a general rule of thumb when using this active ingredient — always be sure to read and follow label use instructions and be sure to consult the specific label of the product you apply.

You can also check out the Similar Products section on FBN Direct for chem products with the same mode of action (MOA) but a different active ingredient, and those with the Same Active, Same Concentration or Same Active, Different Concentration.

Following these recommendations can ensure you get the most out dicamba and your dicamba-tolerant soybeans.

Read this next:How Prevalent are Dicamba-Tolerant Soybeans? (2 min read)

ALWAYS READ AND FOLLOW LABEL DIRECTIONS. It is a violation of federal and state/provincial law to use any pesticide product other than in accordance with its label. The distribution, sale and use of an unregistered pesticide is a violation of federal and/or state law and is strictly prohibited. We do not guarantee the accuracy of any information provided on this page or which is provided by us in any form. It is your responsibility to confirm prior to purchase and use that a product is labeled for your specific purposes, including, but not limited to, your target crop or pest and its compatibility with other products in a tank mix.

FeXapan™ herbicide Plus VaporGrip® Technology is a registered trademark of Corteva Agriscience. VaporGrip® and XtendiMax® are registered trademarks of Bayer Group. Engenia® is a registered trademark of BASF.