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  2. Glyphosate - Wikipedia

    en.wikipedia.org/wiki/Glyphosate

    The International Survey of Herbicide Resistant Weeds database lists species that are resistant to glyphosate. [195] In response to resistant weeds, farmers are hand-weeding, using tractors to turn over soil between crops, and using other herbicides in addition to glyphosate.

  3. Glyphosate-based herbicides - Wikipedia

    en.wikipedia.org/wiki/Glyphosate-based_herbicides

    The glyphosate-based herbicide RoundUp (styled: Roundup) was developed in the 1970s by Monsanto. Glyphosate was first registered for use in the U.S. in 1974. [4] Glyphosate-based herbicides were initially used in a similar way to paraquat and diquat, as non-selective herbicides. Attempts were made to apply them to row crops, but problems with ...

  4. Roundup (herbicide) - Wikipedia

    en.wikipedia.org/wiki/Roundup_(herbicide)

    Application of glyphosate-based herbicides to row crops resulted in problems with crop damage and kept them from being widely used for this purpose. In the United States, use of Roundup experienced rapid growth following the commercial introduction of a glyphosate-resistant soybean in 1996. [75] "Roundup Ready" became Monsanto's trademark for ...

  5. Roundup Ready - Wikipedia

    en.wikipedia.org/wiki/Roundup_Ready

    As of 2005, 87% of U.S. soybean fields were planted with glyphosate resistant varieties. [ 7 ] [ 8 ] While the use of Roundup Ready crops has increased the usage of herbicides measured in pounds applied per acre, [ 9 ] it has also changed the herbicide use profile away from atrazine , metribuzin , and alachlor [ citation needed ] which are more ...

  6. HRAC classification - Wikipedia

    en.wikipedia.org/wiki/HRAC_classification

    The Herbicide Resistance Action Committee (HRAC) classifies herbicides by their mode of action (MoA) to provide a uniform way for farmers and growers to identify the agents they use and better manage pesticide resistance around the world. [1] [2] It is run by CropLife International [3] in conjunction with the Weed Science Society of America ...

  7. Pesticide resistance - Wikipedia

    en.wikipedia.org/wiki/Pesticide_resistance

    From 2005 through 2010 researchers discovered 13 different weed species that had developed resistance to glyphosate. From 2010 to 2014 only two more were discovered. [7] A 2013 Missouri survey showed that multiply-resistant weeds had spread. 43% of the sampled weed populations were resistant to two different herbicides, 6% to three and 0.5% to ...