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Also, mammals are able to process pyrethrin quickly and have higher body temperatures which prevent pyrethrin from working effectively [22] Although pyrethrin is a potent insecticide, it also functions as an insect repellent at lower concentrations. Observations in food establishments demonstrate that flies are not immediately killed, but are ...
Pyrethrum continues to be used as a common name for plants formerly included in the genus Pyrethrum. Pyrethrum is also the name of a natural insecticide made from the dried flower heads of Chrysanthemum cinerariifolium and Chrysanthemum coccineum. The insecticidal compounds present in these species are pyrethrins.
Pyrethroids are synthetic insecticides based on natural pyrethrum (), such as permethrin.. A common formulation of pyrethrin is in preparations containing the synthetic chemical piperonyl butoxide: this has the effect of enhancing the toxicity to insects and speeding the effects when compared with pyrethrins used alone.
Whereas pyrethrin I is a derivative of (+)-trans-chrysanthemic acid, in pyrethrin II one methyl group is oxidized to a carboxymethyl group, the resulting core being called pyrethric acid. Knowledge of their chemical structures opened the way for the production of synthetic analogues, which are called pyrethroids .
Piperonyl butoxide (PBO) is a pale yellow to light brown liquid [1] organic compound used as an adjuvant component of pesticide formulations for synergy.That is, despite having no pesticidal activity of its own, it enhances the potency of certain pesticides such as carbamates, pyrethrins, pyrethroids, and rotenone. [2]
Etofenprox is a broad-spectrum insecticide which disturbs insect nervous systems following direct contact or ingestion, and which is active against a broad spectrum of pests. It is used in agriculture, horticulture, viticulture, forestry, animal health and public health against many insect pests, for instance Lepidoptera , Hemiptera ...
Raid is the brand name of a line of insecticide products produced by S. C. Johnson & Son, first launched in 1956. The initial active ingredient was allethrin, the first synthetic pyrethroid. [1] Raid derivatives aimed at particular invertebrate species can contain other active agents such as the more toxic cyfluthrin which is also a pyrethroid. [2]
Tetramethrin is a potent synthetic insecticide in the pyrethroid family. It is a white crystalline solid with a melting point of 65–80 °C. The commercial product is a mixture of stereoisomers. It is commonly used as an insecticide, and affects the insect's nervous system. It is found in many household insecticide products. [1]