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4-Hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors (HPPD inhibitors) are a class of herbicides that prevent growth in plants by blocking 4-Hydroxyphenylpyruvate dioxygenase, an enzyme in plants that breaks down the amino acid tyrosine into molecules that are then used by plants to create other molecules that plants need.
Amaranthus tuberculatus, commonly known as roughfruit amaranth, [4] rough-fruited water-hemp, [5] tall waterhemp, or common waterhemp, [6] [7] is a species of flowering plant. It is a summer annual broadleaf with a germination period that lasts several months. [8] Tall waterhemp has been reported as a weed in 40 of 50 U.S. states. [9]
Lactofen is applied as a foliar spray and is commonly used to control broadleaved weeds in soybeans, cereals, potatoes and peanuts. It may be combined with oil or fertilizer adjuvants and surfactants. Some formulations include solvents such as xylenes and cumene. [1] It is also used as a fungicide for Sclerotinia white moulds on soybean. [4] [5 ...
In the United States as of 2014, atrazine was the second-most widely used herbicide after glyphosate, [16] with 76 million pounds (34 thousand metric tons) of it applied each year, [19] [20] nearly identical to its usage in 1974, of 76.8 million pounds. [21] Atrazine continues to be one of the most widely used herbicides in Australian ...
One major complication to the use of herbicides for weed control is the ability of plants to evolve herbicide resistance, rendering the herbicides ineffective against target plants. Out of 31 known herbicide modes of action, weeds have evolved resistance to 21. 268 plant species are known to have evolved herbicide resistance at least once. [ 59 ]
Fomesafen is the ISO common name [2] for an organic compound used as an herbicide. It acts by inhibiting the enzyme protoporphyrinogen oxidase (PPO) [3] which is necessary for chlorophyll synthesis. Soybeans naturally have a high tolerance to fomesafen, [3] [4] via metabolic disposal by glutathione S-transferase.
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 glyphosate-based herbicide RoundUp (styled: Roundup) was developed in the 1970s by Monsanto.Glyphosate was first registered for use in the U.S. in 1974. [4] Glyphosate-based herbicides were initially used in a similar way to paraquat and diquat, as non-selective herbicides.