dicamba drift

Despite control measures the Environmental Protection Agency’ implemented in October 2020, 2021 reports show little change in number, severity or geographic extent of dicamba-related incidents compared to reports the agency received before 2020. Dicamba use has been subject to considerable...

By Larry Steckel and Tom Mueller • As most know, the Environmental Protection Agency approved a new five-year registration for Engenia, Tavium and XtendiMax to be used in Xtend cotton and soybean. The new registration has some new labeled directions...

Editor's note: Iowa State University Extension weed specialist Bob Hartzler summarizes the high points of the recent reregistration of over-the-top dicamba products and the new rules that come with the new five-year labels. It is by no means all...

Synthetic auxin products have given growers an important option for managing weed populations resistant to glyphosate and other herbicides. But according to an article featured in the journal Weed Technology, there is one important downside to dicamba, 2,4-D and...

A University of Tennessee Institute of Agriculture study published in the Journal of Weed Technology found that mixing glyphosate with formulations of dicamba consistently lowered the pH of the spray solution below 5.0—a critical value according to the latest...

Higher temperatures and mixing glyphosate with dicamba lead to increased atmospheric concentrations of dicamba, according to scientists with the University of Tennessee Institute of Agriculture. Tom Mueller and Larry Steckel, both professors in the University of Tennessee Department of Plant...

The Southern Weed Science Society recently honored Larry Steckel, a professor with the University of Tennessee Department of Plant Sciences, with the Outstanding Educator Award. The award was presented at the society's 2019 annual meeting in Oklahoma City, according...

Before Tennessee applicators can apply low-volatile versions of dicamba herbicide in 2019, they must first attend an approved dicamba-specific training. University of Tennessee Extension will offer a dicamba stewardship training across multiple locations, dates and platforms. Dicamba training is mandatory...

The Weed Science Society of America recently released a report based on a recent research workshop on the off-target movement of dicamba herbicides. The meeting, comprising invited scientists, regulators and registrants, was designed to identify data gaps and develop research...

The Missouri Department of Agriculture has established cut-off dates for application of Engenia dicamba herbicide for the 2018 cotton and soybean seasons. These are part of a Section 24(c) Special Local Needs label for the BASF herbicide. The state anticipates...

The Arkansas Plant Board will conduct a public hearing beginning at 9 a.m., Nov. 8, on its proposal to ban over-the-top in-season dicamba herbicide use from April 16-Oct. 31. The regulations include exemptions for dicamba use in pastures, rangeland, turf,...

The Arkansas Dicamba Task Force, meeting Aug. 24 at the Winthrop Rockefeller Institute on Petit Jean Mountain, recommended a date-specific ban on dicamba use for the 2018 crop year. That recommendation and others will now be forwarded to the State...

Preliminary University of Arkansas research results shed light on potential drift and volatility of three new formulations. By Vicky Boyd Editor Even if you follow all of the label recommendations when applying the new dicamba formulations, the herbicides can still volatilize and...

In response to numerous complaints of suspected dicamba drift, the Tennessee Department of Agriculture issued emergency application restrictions on newer dicamba formulations. Use of older dicamba formulations are banned in Tennessee for the rest of the season. The rules are...

After a series of delays, it appears an emergency ban on in-season over-the-top use of dicamba on Xtend crops in Arkansas will go into effect at 12:01 a.m., July 11. Following more than 130 complaints filed with the state, the...