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.
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.
In a world-first breakthrough for research into herbicide resistance, a team of Australian and international scientists has discovered a new glyphosate resistance mechanism in plants that has similarities to cancer drug resistance in humans, say researchers from the University of Western Australia.
A study from the University of Florida indicates that Palmer amaranth can evolve life-history traits to increase its potential to grow and reproduce in various cropping systems.
Ohio State University Extension stresses that growers should have a zero tolerance policy on Palmer amaranth and what they can do to prevent the weed from establishing.
Giant ragweed is moving into the exponential growth stage and will pass the ideal 2- to 4-inch weed height for good control very soon, says University of Minnesota Extension.
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On this episode of Conservation Ag Update, brought to you by Montag Manufacturing, growers from across the U.S. share their predictions for the upcoming planting season, including one no-tiller who’s “bullish” about a great spring.
Montag products have proven results with patented precision metering application for significant savings of nutrients and cover crop seed, and for achieving best conservation practices.
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Kuhn Krause's focus, above all, is to continue to produce quality products to serve producers better; to strive to respond to their needs with new tools and new technology to meet their growing challenges. Agronomic practices are constantly changing, and at a faster pace now than ever.