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Atrazine degrades in soil primarily by the action of microbes. The half-life of atrazine in soil ranges from 13 to 261 days. [32] Atrazine biodegradation can occur by two known pathways: Hydrolysis of the C-Cl bond is followed by the ethyl and isopropyl groups, catalyzed by the hydrolase enzymes called AtzA, AtzB, and AtzC.
The Herbicide Resistance Action Committee (HRAC) classifies herbicides by their mode of action (MoA) to provide a uniform way for farmers and growers to identify the agents they use and better manage pesticide resistance around the world. [1] [2] It is run by CropLife International [3] in conjunction with the Weed Science Society of America ...
Work on the mode of action and toxicology of the triketones took on a broader range of interactions when Stauffer Chemical was purchased by ICI in June 1987. ICI then split off the pharmaceutical and agrochemical businesses as Zeneca and then Syngenta was formed in 2000 by the merger of Novartis Agribusiness and Zeneca Agrochemicals.
The industry-sponsored Herbicide Resistance Action Committee (HRAC) advises on the use of herbicides in crop protection and classifies the available compounds according to their chemical structures and mechanism of action so as to manage the risks of pesticide resistance developing. [4]
Atrazine is thus said to have "carryover", a generally undesirable property for herbicides. ... Out of 31 known herbicide modes of action, ...
This group of herbicides acts by inhibiting plant acetyl-CoA carboxylase (ACCase), a completely different mechanism of action to that of the auxins. [ 11 ] [ 12 ] Their selectivity for grasses arises because they target the isoform of the enzyme present only in the plastids of these species, making them ineffective on broad-leaf weeds and other ...
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 mechanism of action of aspirin involves irreversible inhibition of the enzyme cyclooxygenase; [17] therefore suppressing the production of prostaglandins and thromboxanes, thus reducing pain and inflammation. This mechanism of action is specific to aspirin and is not constant for all nonsteroidal anti-inflammatory drugs (NSAIDs). Rather ...