Dow AgroSciences Reveals Progress on New Herbicide Tolerance Trait

New technology will offer effective, affordable broad-spectrum weed control in corn, soybeans

DECATUR, Illinois — August 28, 2007 — Dow AgroSciences announced details today of an exciting,

new family of herbicide tolerance traits currently in development that could be available in corn by 2012.

Known currently as Dow AgroSciences Herbicide Tolerance, this innovative technology will improve weed control in herbicide-tolerant crops, said Tom Wiltrout, Global Business Leader – Corn for Dow AgroSciences, during a news conference at the company’s Farm Progress Show site.

Standing in front of a field plot of corn containing the new trait, Wiltrout said Dow AgroSciences Herbicide Tolerance will be stacked with the HERCULEX® Insect Protection ( family of traits to provide growers the broadest-spectrum, in-plant insect protection available and the best herbicide tolerance package.

“Dow AgroSciences Herbicide Tolerance traits will provide tolerance to certain broadleaf and grass herbicides, including the phenoxy auxins like 2,4-D, as well as aryloxyphenoxypropionate ‘fop’ grass herbicides,” Wiltrout told the ag media gathered at a press event held at the company’s Farm Progress Show site.

Wiltrout said Dow AgroSciences was working with 2,4-D for several reasons.

“2,4-D is an effective and affordable broadleaf herbicide, and it’s registered for postemergence use in corn and the burndown phase for corn and soybeans,” he said. “Growers are very familiar with 2,4-D and its performance, and despite its long history of use, few resistant weed populations have been identified.”

The introgression of new traits into elite genetics and the completion of regulatory processes to allow for commercialization typically take several years. Dow AgroSciences estimates launch timing for this technology at 2012 for corn and 2013 or 2014 for soybeans.

The company also will apply for approval of these traits with the regulatory bodies of its main trading-partner countries and will pursue both import permits and cultivation approvals in key countries.

“Dow AgroSciences anticipated that the rapid adoption of glyphosate tolerance traits would likely result in broadleaf weeds developing tolerance to glyphosate,” Wiltrout said. “Coupling Dow AgroSciences Herbicide Tolerance technology with other currently available herbicide tolerance traits will allow growers to use multiple modes of action to improve control of broadleaf weeds that are becoming more problematic.”

Wiltrout added that Dow AgroSciences is launching two new soil-applied herbicides that will be ideal for use in herbicide-tolerant crops. SureStart™ herbicide ( in corn and Sonic™ herbicide ( in soybeans both contain multiple modes of action that provide residual weed control in herbicide-tolerant crops.

To learn more about Dow AgroSciences Herbicide Tolerance and the company’s current technologies, including HERCULEX, SureStart and Sonic, visit

You can view the company’s latest activities at the Farm Progress Show, including a slide show of photos and audio and video podcasts from the site, at The site will be updated regularly during the show.

About Dow AgroSciences

Dow AgroSciences LLC, based in Indianapolis, Indiana, USA, is a top-tier agricultural company providing innovative crop protection, pest and vegetation management, seed, and agricultural biotechnology solutions to serve the world’s growing population. Global sales for Dow AgroSciences, a wholly owned subsidiary of The Dow Chemical Company, are $3.4 billion. Learn more at