Dicamba is available again for over-the-top use in XtendFlex cotton, but the path back comes with a label that demands planning, discipline, and proof that we can keep applications on target. We sit down with weed scientists Dr. Pete Dotray (Texas Tech) and Dr. Stanley Culpepper (University of Georgia) to translate what changed for 2026 and 2027 and what those changes mean when you are trying to cover acres on real timelines.

We walk through the biggest shifts growers and applicators will feel immediately: a two-season registration window, required training, heavier documentation, updated droplet language, and tighter stewardship expectations around drift and volatility. Then we slow down and unpack the new temperature-based approach using National Weather Service forecasts, including how the 84°F, 85–94°F, and 95°F thresholds can  limit acres under certain conditions, and potentially push dicamba applications earlier in the season. We also cover the practical pieces that decide whether a spray stays clean: VRAs and DRAs at the correct rates, boom height, wind speed, inversions, time-of-day rules, rainfall and runoff language, and how downwind buffers can be managed with mitigation credits and defined managed areas.

The conversation also turns to paraquat, why the product matters across agriculture, and why uncertainty in supply or training infrastructure would ripple through conservation tillage and harvest aid programs. The bigger takeaway is simple: resistance is not the only threat to the herbicide toolbox anymore. Lawsuits, regulation pressure, and public narratives are shaping what stays available, and stewardship is now part of keeping tools on the farm.