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2. 2,4-Dichlorophenoxyacetic acid - Wikipedia

   en.wikipedia.org/wiki/2,4-Dichlorophenoxyacetic_acid

   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.

3. Preemergent herbicide - Wikipedia

   en.wikipedia.org/wiki/Preemergent_herbicide

   Preemergent herbicides are a form of chemical weed control which prevent germinated weed seedlings from becoming established. In some areas of the world, they are used to prevent crabgrass from appearing in lawns. [1] Preemergent herbicides are applied to lawns in the spring and autumn, to prevent the establishment of weed seeds. They will not ...

4. Quinclorac - Wikipedia

   en.wikipedia.org/wiki/Quinclorac

   Quinclorac is an herbicide used primarily to control crabgrass. [1] It is found in some household herbicides for lawn use. Most [citation needed] lawn maintenance companies use the product for the control of annual grass weeds like crabgrass. Quinclorac is a synthetic auxin.

5. Dicamba - Wikipedia

   en.wikipedia.org/wiki/Dicamba

   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.

6. Triclopyr - Wikipedia

   en.wikipedia.org/wiki/Triclopyr

   In the USA, it is sold under the trade names Garlon, Remedy, Turflon, Weed-B-Gon (purple label), Brush-B-Gon among others, and in the UK as SBK Brushwood Killer. It is a major ingredient in Confront, which was withdrawn from most uses because of concerns about compost contamination from the other major ingredient, clopyralid .

7. Atrazine - Wikipedia

   en.wikipedia.org/wiki/Atrazine

   It is used to prevent pre-emergence broadleaf weeds in crops such as maize (corn), [3] soybean [3] and sugarcane and on turf, such as golf courses and residential lawns. Atrazine's primary manufacturer is Syngenta and it is one of the most widely used herbicides in the United States, [2] Canadian, [4] and Australian agriculture. [5]