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EPA Approves Engenia for Dicamba-Tolerant Soybeans and Cotton

Farmers now have a second low-volatile dicamba formulation to use in the Roundup Ready Xtend Crop System.

The EPA has registered Engenia herbicide for use in soybeans and cotton. This low-volatile dicamba formulation is the second herbicide for Monsanto’s Roundup Ready Xtend Crop System to have been approved. (Monsanto’s Xtendimax with Vapor Grip Technology was the first.)

In a press release, BASF officials say Engenia controls more than 200 broadleaf weeds, including glyphosate-resistant weeds, in dicamba-tolerant soybeans and cotton. They say it will provide more than 95% control of both grasses and problematic broadleaf weeds when combined with a BASF residual herbicide.

Engenia is a stand-alone dicamba herbicide. Other benefits touted by BASF officials include:

• An advanced formulation, with a 70% reduction in volatility when compared with diglycolamine (DGA) salt formulations (Clarity, Sterling Blue) of dicamba.
• The lowest use rate of all dicamba products on the market.
• Added flexibility with the option for direct injection, which reduces the number of tank cleanouts and refills.

The press release also includes BASF officials saying BASF studies show Engenia will:
• Be more effective than 2,4-D for residual control of key broadleaf weeds, including waterhemp, common lambsquarters, and Palmer amaranth.
• Provide effective postemergence control of many broadleaf weeds, including smartweed, kochia, and cocklebur, as well as superior control of perennial weed Canada thistle compared with 2,4-D.

Education Will Be Stressed
Applicators must follow certain practices while applying these new formulations. While the newly labeled applications are reportedly less likely to volatilize after application, there is nothing unique about the formulations that will reduce physical drift during application, says Aaron Hager, University of Illinois Extension weeds specialist.

It’s important to note, too, that Engenia and Xtendimax with Vapor Grip Technology are thus far the only dicamba formulations labeled for use on Roundup Ready 2 Xtend soybeans. All other dicamba formulations are off-label and illegal for the Roundup Ready Xtend Crop System. Illegal dicamba formulations that were applied on Roundup Ready 2 Xtend soybeans in 2016 caused headaches for many in states like Missouri.

BASF officials say the firm will continue to support farmers with ongoing stewardship and education efforts, including weed-control best practices, resistance management, on-target applicatio, and other technical support. It is continuing its On Target Application Academy that offers growers, retailers, and custom applicators field-based applicator training that focuses on proper application in a one-on-one setting with BASF experts. Since the program started, BASF officials say more than 13,400 applicators across 31 states have participated in the stewardship training. An online version of OTAA will be made available by the end of this year.


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