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Tembotrione was introduced in 2007 for corn, and works against key grass species and importantly, kills broadleaf weeds, including glyphosate-, ALS- and dicamba-resistant weeds. Used with safeners there are no crop-rotation restrictions. Pyrasulfotole was also introduced in 2007 for cereals in North America, and was the first new class of ...
Acetochlor is an herbicide developed by Monsanto Company and Zeneca. It is a member of the class of herbicides known as chloroacetanilides. Its mode of action is elongase inhibition, and inhibition of geranylgeranyl pyrophosphate (GGPP) cyclization enzymes, part of the gibberellin pathway. It carries high risks of environmental contamination. [2]
Metsulfuron-methyl is an organic compound classified as a sulfonylurea herbicide, which kills broadleaf weeds and some annual grasses. [1] It is a systemic compound with foliar and soil activity, that inhibits cell division in shoots and roots. It has residual activity in soils, allowing it to be used infrequently but requiring up to 22 months ...
Herbicide adsorption to soil colloids or organic matter often reduces the amount available for weed absorption. Positioning of the herbicide in the correct layer of soil is very important, which can be achieved mechanically and by rainfall. Herbicides on the soil surface are subjected to several processes that reduce their availability.
Alternatively, spraying after weeds are already present in the crop will also lead to control. The product is used at application rates of 0.008–0.0155 pounds per acre (9.0–17.4 g/ha). [ 16 ] The estimated use in US agriculture is mapped by the US Geological Service and shows that from 1992 to 2017, the latest date for which figures are ...
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.
Cyanazine is used as a herbicide to control annual grasses and broadleaf weeds. It belongs to the group of triazine herbicides, just as atrazine. These pesticides work by inhibiting photosynthesis. The majority of the cyanazine used is used for corn. In 1985 this was 96% of the used cyanazine. [2]
Glufosinate is a broad-spectrum herbicide that is used to control important weeds such as morning glories, hemp sesbania (Sesbania bispinosa), Pennsylvania smartweed (Polygonum pensylvanicum), and yellow nutsedge (Cyperus esculentus) similar to glyphosate. It is applied to young plants during early development for full effectiveness. [3]
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