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2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula Cl 2 C 6 H 3 OCH 2 CO 2 H.It is usually referred to by its ISO common name 2,4-D. [4] It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.
The code was phased in over the course of 3 years and by April 2006 the use and sale of lawn pesticides was banned province-wide. [14] The Ontario provincial government promised on September 24, 2007, to also implement a province-wide ban on the cosmetic use of lawn pesticides, for protecting the public. [15]
Dicamba has since been used for household and commercial weed control. Increasing use of dicamba has been reported with the release of dicamba-resistant genetically modified plants by Monsanto. In October 2016, the EPA launched a criminal investigation into the illegal application of older, drift prone formulations of dicamba onto these new plants.
Scotts was founded in 1868 by Orlando M. Scott as a premium seed company for the U.S. agricultural industry. In the early 1900s, the company began a lawn grass seed business for homeowners, and in 1924, became the first company to ship grass seed products directly to stores. Prior to 1924, Scotts products were only available through the mail. [5]
Triclopyr is a selective weedkiller used to control dicotyledonous weeds (i.e. broadleaf plants) while leaving monocotyledonous plants (mostly bulbs, grasses and conifers) unaffected, [2] or to control rust fungus on soybean crops.
The LD50 is 580 mg/kg (rats, oral). Liquid (molten) 2,4-DCP is readily absorbed through the skin. [8] Solid 2,4-DCP does not readily absorb through skin and has a lower NFPA H=3 rating (versus H=4 for molten 2,4-DCP).