Engenia, Tavium, and XtendiMax Labels Vacated

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A Federal district court in Arizona issued an order on February 6 to vacate labels for Engenia, Tavium, and XtendiMax. Many will panic in response to this news and scramble to switch technology. After talking with leadership at the NCDA&CS Structural Pest Control and Pesticides Division, our advice is to avoid rash decisions. Although I will not discourage growers from trying to switch herbicide technology in response to the order, a couple of unknowns remain. The main two that come to mind are 1) Will EPA appeal the decision? and 2) If the order is upheld, will growers be able to use existing stocks (either on-farm, at the retail level, or registrant level)? I know it’s hard not to react quickly to this ill-timed news, but we need to see EPA response in order to make a well-informed decision about our 2024 weed management plans.

If you plan to stay the course with XtendFlex cotton and/or soybean, remember that you have the ability to use glufosinate (Liberty and various generics). It would also be wise to have a strong preplant and preemergence residual program in the event your postemergence herbicide options are limited. If you decide to switch to the Enlist system, coordinate with your neighbors and use what you have learned in the past 7 years of the Auxin training to mitigate off-target movement; the last thing we need is more scrutiny for another valuable weed management platform.

Weeds infesting cotton.

Weeds infesting cotton.

Lastly, NC State Extension and NCDA&CS plan to continue the 2024 Auxin Training in case applicators can use dicamba over-the-top of dicamba tolerant cotton and soybean this season. Again, my best advice is to remain calm and wait for more information.