Although UAN (urea-ammonium nitrate) and many pre-emergence products can be applied to emerged corn, using UAN as a herbicide carrier enhances the foliar activity of products and may result in foliar damage.
Monsanto's ongoing efforts to try to take over Swiss agrochemicals firm Syngenta, a rival whose product portfolio offers an array of agricultural chemicals, could spark a sell-off or de-emphasis of a product line that last year brought in roughly $5 billion, or a third of total revenues for Monsanto, according to industry sources.
Dow AgroSciences has recorded the first U.S. sale of Enlist Duo herbicide with Colex-D Technology. This marks the first commercial activity for the Enlist Weed Control System in the United States, putting this advanced herbicide and trait technology in growers’ hands.
By Meaghan Anderson, ISU Extension Field Agronomist, East Central Iowa, Iowa State University
Palmer amaranth has been confirmed in five Iowa counties over the last two summers. The only (known) infestation in Muscatine County is on a very sandy soil near the Cedar River, and most emerged seedlings had at least four true leaves on May 4, 2015.
The Environmental Protection Agency has wrapped up its review of the world's most widely used herbicide and plans to release a much-anticipated preliminary risk assessment no later than July, the regulator's chief pesticide regulator told Reuters.
By Tom Hunt, Robert Wright, Julie Peterson, University of Nebraska
Resistance management is a recurrent topic in many Extension publications and programs. Although resistance is certainly not new to agriculture, we tend to think about it only after a significant "resistance" outbreak. This is unfortunate because in so many cases resistance can be avoided, or at least slowed.
Resistant weeds, the appropriate use of herbicides and integrated weed management strategies are highlighted topics in the new white paper, “Overlapping Residual Herbicides,” written by Purdue University Associate Professor of Weed Science Bryan Young. The white paper is now available online at www.FMCcrop.com/OverlapSystem.
Palmer amaranth continues to cause significant problems in the Mid-South and has rapidly spread throughout the Midwest. As of 2015, glyphosate-resistant Palmer amaranth has been confirmed in Georgia, North Carolina, Arkansas, Tennessee, South Carolina, New Mexico, Mississippi, Alabama, Missouri, Louisiana, Illinois, Ohio, Kentucky, Michigan, Virginia, Kansas, Texas, Arizona, Delaware, Indiana, Pennsylvania, Florida, Maryland, New Jersey, and Wisconsin.