e-journal
Glyphosate Stewardship, Optimizing and Preserving Glyphosate Performance
Summary.
Glyphosate is one of the most widely used herbicides in Kansas and around the world. It is highly effective for broad-spectrum weed control and has been especially important to the development and sustainability of chemical-fallow and no-till crop production systems in the Great Plains. Glyphosate was first registered and
introduced as Roundup herbicide in 1974. It injures or kills many plant species when applied postemergence
to the foliage at labeled field rates. Glyphosate is systemic and readily translocates in plant xylem and
phloem. It kills plants by interfering with enolpyruvylshikimate phosphate synthase (EPSPS) enzyme activity
needed for plant growth and development. Glyphosate has low mammalian toxicity because mammals do not possess the EPSPS enzyme.
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