Although glyphosate provided superior weed control in the early years, most of the weeds in the dataset showed signs of adaptation to the chemical in just two to three years.
Surtain herbicide, the first solid encapsulated premix formulated product on the market, has received registration from the U.S. Environmental Protection Agency (EPA) and is now approved for use, subject to state approvals.
The study says the data show a rapid falling-off of glyphosate effectiveness against seven major weeds after the first couple of years. The authors conclude that intensive use of any one weedkiller like glyphosate year-after-year serves to speed up evolution in weeds to resist it.
The Arthaud family has been farming its land, located in the Panhandle region of Oklahoma, for more than a century. They adopted the Greeneye system to extend the benefits of precision spraying to green-on-green applications, and to continue to suppress increasingly resistant weeds while remaining no-till.
Starting weed-free (also known as “starting clean”) means planting into fields without emerged weeds, which provides the crop with the best chance to establish early and compete with weeds.
Brock Waggoner, technical agronomist at Helm, shares 8 best practices and reminders for starting clean and staying clean using products that bridge the gap.
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On this episode of Conservation Ag Update, brought to you by Martin-Till, Brian and Darren Hefty, fourth-generation farmers and hosts of Ag PhD, share tips for treating tar spot in corn.
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