EPA registers BASF’s Engenia dicamba herbicide

Engenia herbicide from BASFThe Environmental Protection Agency has registered Engenia dicamba-only herbicide from BASF Corp. for over-the-top use on dicamba-tolerant soybeans and cotton. State registrations are pending.

Before making its decision, the EPA reviewed nearly 22,000 public comments.

Engenia contains a BAPMA form of dicamba as the active ingredient. The advanced formulation is 70 percent less volatile than DGA dicamba, according to a news release. It also is applied at only 12.8 ounces per acre, one of the lowest use rates in the industry.

It targets more than 200 different broadleaf weeds, including those resistant to glyphosate, said Chad Asmus, BASF technical marketing manager, during an online news conference Dec. 22. When used in conjunction with a residual herbicide at planting, Engenia should provide up to 95 percent control of numerous broadleaf and grassy weeds, he says.

Dicamba belongs to the Weed Science Society of America’s Group 4, so BASF recommends incorporating herbicides with other modes of action into your weed-control program.

The label prohibits aerial application. Optimum wind speeds are between 3 and 10 mph for application, and buffer zones must be maintained. Boom height may be no more than 24 inches above target pest or crop canopy, and specific nozzles also are required.

The label also only allows tankmix partners that have been shown not to increase volatility. Currently, there are no approved tankmix products, according to BASF’s Engenia Tankmix Partner Selector website.

As part of ongoing stewardship efforts, BASF says it plans to train as many applicators, consultants, retailers, Extension and growers as possible through face-to-face meetings and online classes.

Earlier this year, the EPA registered XtendiMax herbicide with Vapor Grip Technology from Monsanto for use on dicamba-tolerant cotton and soybeans. The active ingredient is dicamba diglycoamine salt (DGA) with a proprietary additive to reduce volatility.

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