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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.
Dicamba is a selective and systemic herbicide that kills annual and perennial broadleaf weeds. [10] Its primary commercial applications are weed control for grain crops and turf areas. It is also used to control brush and bracken in pastures, as well as controlling legumes and cacti.
The type of weed will clue you in on when to apply weed killer to the lawn. ... "Not following the labeled instructions can cause long-term serious illnesses or even death to humans and animals ...
Hoeing or cultivating the weed can be one way to get rid of it, so long as you uproot the entire root system. Mulches can also help keep this weed out of flowerbeds and gardens.
Because most herbicides could not kill all weeds, farmers rotate crops and herbicides to stop the development of resistant weeds. A 2008–2009 survey of 144 populations of waterhemp in 41 Missouri counties revealed glyphosate resistance in 69%.
For broadleaf weeds, use 3-way herbicide containing 2, 4-D as the main active ingredient. Follow the application instructions on the label, says Waltz. Follow the application instructions on the ...