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US approved Dow’s Elevore herbicide for burndown use
Aug. 31, 2017
Dow AgroSciences has received federal registration for Elevore herbicide (halauxifen-methyl, trade-marked as Arylex) for use in fall and spring burndown programs for cotton, soybeans and corn.
Field trials show that Elevore provides effective control of labeled broadleaf weeds, including glyphosate- and ALS-resistant marestail, lambsquarters, cutleaf evening primrose and henbit.
“Unlike many other burndown herbicides, Elevore helps prevent regrowth of emerged weeds,” says Jon Doran, portfolio marketing leader, Dow AgroSciences. “In field trials conducted by Dow AgroSciences over several years, Elevore provided excellent activity on marestail at various heights, including 8-inch tall marestail. We have also seen consistent control across a wide range of geographies.”
Matt Stagg, a farmer from Bunkie, LA, is impressed with the weed control he experienced in a 5-acre field trial using Elevore on his farm in 2016.
“We had a range of weeds and various sizes of marestail present in the field trial,” says Stagg. “Adding Elevore to our current protocols definitely gave the other products an edge on knocking it down. I also see incorporating a burndown protocol using Elevore and coming back with a pre-emerge herbicide application as a strong resistance management program. Every year, pre-emerge herbicides are becoming more of a need as resistance continues increasing.”
Elevore herbicide contains Arylex active and is a novel class of herbicides that acts through a synthetic auxin mechanism to control broadleaf weeds in burndown. Absorbed mainly through leaves, shoots and roots of plants, Arylex active translocates through the plant for effective control.
The low use rate of one ounce per acre makes Elevore an excellent fit in reduced- and no-till production systems for burndown applications before planting. Elevore can be applied with a farmer’s current burndown program in spring or fall in various climate conditions, including cooler temperatures.
Although Arylex active is not considered a new mode of action, it does have unique binding affinity that is different from other auxin herbicides such as 2,4-D.
“Visual signs of control aren’t immediately apparent, because Arylex active is absorbed by the plant’s cells where the herbicide binds with specific auxin receptors in the cell’s nucleus,” says Dr. Jeff Ellis, field scientist, Dow AgroSciences. “The delayed response is due to the gradual, albeit complete, absorption process. Once absorbed by the plant’s nucleus, Arylex active halts growth and the plant dies, providing complete control.”
Source: Dow AgroSciences News Release
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