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Fipronil is a broad-spectrum insecticide that belongs to the phenylpyrazole insecticide class. [3] Fipronil disrupts the insect central nervous system by blocking the ligand-gated ion channel of the GABA A receptor (IRAC group 2B) and glutamate-gated chloride (GluCl) channels. This causes hyperexcitation of contaminated insects' nerves and muscles.
Chemical structure of fipronil, a common phenylpyrazole insecticide. Phenylpyrazole insecticides are a class of chemically-related broad-spectrum insecticides. [1] The chemical structures of these insecticides are characterized by a central pyrazole ring with a phenyl group attached to one of the nitrogen atoms of the pyrazole.
Chlorfenapyr was developed by American Cyanamid from the natural product dioxapyrrolomycin, which was isolated from Streptomyces fumanus. [2]The United States Environmental Protection Agency initially denied registration in 2000 for use on cotton primarily because of concerns that the insecticide was toxic to birds and because effective alternatives were available. [3]
The pesticide manual provides much information on pesticides. [6] [7] Many of the insecticides in the list are not in use. The developer of a pesticide applies for a common name when they intend to sell it, but some nevertheless do not reach the market. Many insecticides have been banned or otherwise withdrawn from the market over the decades.
Spinosad is an insecticide based on chemical compounds found in the bacterial species Saccharopolyspora spinosa.The genus Saccharopolyspora was discovered in 1985 in isolates from crushed sugarcane.
New tests done by the Environmental Working Group have found 21 oat-based cereals and snack bars popular amongst children to have "troubling levels of glyphosate." The chemical, which is the ...
Chlorantraniliprole is an insecticide of the diamide class used for insects found on fruit and vegetable crops as well as ornamental plants. [1]Chlorantraniliprole opens muscular calcium channels, in particular the ryanodine receptor, rapidly causing paralysis and ultimately death of sensitive species (IRAC class 28).
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]